20745290520

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{39551}}^1$

素因数の和:39646

約数の個数: 192

約数和(自身を含む): 71079690240

約数和(自身を除く): 50334399720

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 31, 36, 40, 45, 47, 60, 62, 72, 90, 93, 94, 120, 124, 141, 155, 180, 186, 188, 235, 248, 279, 282, 310, 360, 372, 376, 423, 465, 470, 558, 564, 620, 705, 744, 846, 930, 940, 1116, 1128, 1240, 1395, 1410, 1457, 1692, 1860, 1880, 2115, 2232, 2790, 2820, 2914, 3384, 3720, 4230, 4371, 5580, 5640, 5828, 7285, 8460, 8742, 11160, 11656, 13113, 14570, 16920, 17484, 21855, 26226, 29140, 34968, 39551, 43710, 52452, 58280, 65565, 79102, 87420, 104904, 118653, 131130, 158204, 174840, 197755, 237306, 262260, 316408, 355959, 395510, 474612, 524520, 593265, 711918, 791020, 949224, 1186530, 1226081, 1423836, 1582040, 1779795, 1858897, 2373060, 2452162, 2847672, 3559590, 3678243, 3717794, 4746120, 4904324, 5576691, 6130405, 7119180, 7356486, 7435588, 9294485, 9808648, 11034729, 11153382, 12260810, 14238360, 14712972, 14871176, 16730073, 18391215, 18588970, 22069458, 22306764, 24521620, 27883455, 29425944, 33460146, 36782430, 37177940, 44138916, 44613528, 49043240, 55173645, 55766910, 57625807, 66920292, 73564860, 74355880, 83650365, 88277832, 110347290, 111533820, 115251614, 133840584, 147129720, 167300730, 172877421, 220694580, 223067640, 230503228, 288129035, 334601460, 345754842, 441389160, 461006456, 518632263, 576258070, 669202920, 691509684, 864387105, 1037264526, 1152516140, 1383019368, 1728774210, 2074529052, 2305032280, 2593161315, 3457548420, 4149058104, 5186322630, 6915096840, 10372645260, 20745290520]

約数ペア:

[(1, 20745290520), (2, 10372645260), (3, 6915096840), (4, 5186322630), (5, 4149058104), (6, 3457548420), (8, 2593161315), (9, 2305032280), (10, 2074529052), (12, 1728774210), (15, 1383019368), (18, 1152516140), (20, 1037264526), (24, 864387105), (30, 691509684), (31, 669202920), (36, 576258070), (40, 518632263), (45, 461006456), (47, 441389160), (60, 345754842), (62, 334601460), (72, 288129035), (90, 230503228), (93, 223067640), (94, 220694580), (120, 172877421), (124, 167300730), (141, 147129720), (155, 133840584), (180, 115251614), (186, 111533820), (188, 110347290), (235, 88277832), (248, 83650365), (279, 74355880), (282, 73564860), (310, 66920292), (360, 57625807), (372, 55766910), (376, 55173645), (423, 49043240), (465, 44613528), (470, 44138916), (558, 37177940), (564, 36782430), (620, 33460146), (705, 29425944), (744, 27883455), (846, 24521620), (930, 22306764), (940, 22069458), (1116, 18588970), (1128, 18391215), (1240, 16730073), (1395, 14871176), (1410, 14712972), (1457, 14238360), (1692, 12260810), (1860, 11153382), (1880, 11034729), (2115, 9808648), (2232, 9294485), (2790, 7435588), (2820, 7356486), (2914, 7119180), (3384, 6130405), (3720, 5576691), (4230, 4904324), (4371, 4746120), (5580, 3717794), (5640, 3678243), (5828, 3559590), (7285, 2847672), (8460, 2452162), (8742, 2373060), (11160, 1858897), (11656, 1779795), (13113, 1582040), (14570, 1423836), (16920, 1226081), (17484, 1186530), (21855, 949224), (26226, 791020), (29140, 711918), (34968, 593265), (39551, 524520), (43710, 474612), (52452, 395510), (58280, 355959), (65565, 316408), (79102, 262260), (87420, 237306), (104904, 197755), (118653, 174840), (131130, 158204)]