74651720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{421}}^1$

素因数の和:487

約数の個数: 128

約数和(自身を含む): 204180480

約数和(自身を除く): 129528760

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 31, 40, 44, 52, 55, 62, 65, 88, 104, 110, 124, 130, 143, 155, 220, 248, 260, 286, 310, 341, 403, 421, 440, 520, 572, 620, 682, 715, 806, 842, 1144, 1240, 1364, 1430, 1612, 1684, 1705, 2015, 2105, 2728, 2860, 3224, 3368, 3410, 4030, 4210, 4433, 4631, 5473, 5720, 6820, 8060, 8420, 8866, 9262, 10946, 13051, 13640, 16120, 16840, 17732, 18524, 21892, 22165, 23155, 26102, 27365, 35464, 37048, 43784, 44330, 46310, 52204, 54730, 60203, 65255, 88660, 92620, 104408, 109460, 120406, 130510, 143561, 169663, 177320, 185240, 218920, 240812, 261020, 287122, 301015, 339326, 481624, 522040, 574244, 602030, 678652, 717805, 848315, 1148488, 1204060, 1357304, 1435610, 1696630, 1866293, 2408120, 2871220, 3393260, 3732586, 5742440, 6786520, 7465172, 9331465, 14930344, 18662930, 37325860, 74651720]

約数ペア:

[(1, 74651720), (2, 37325860), (4, 18662930), (5, 14930344), (8, 9331465), (10, 7465172), (11, 6786520), (13, 5742440), (20, 3732586), (22, 3393260), (26, 2871220), (31, 2408120), (40, 1866293), (44, 1696630), (52, 1435610), (55, 1357304), (62, 1204060), (65, 1148488), (88, 848315), (104, 717805), (110, 678652), (124, 602030), (130, 574244), (143, 522040), (155, 481624), (220, 339326), (248, 301015), (260, 287122), (286, 261020), (310, 240812), (341, 218920), (403, 185240), (421, 177320), (440, 169663), (520, 143561), (572, 130510), (620, 120406), (682, 109460), (715, 104408), (806, 92620), (842, 88660), (1144, 65255), (1240, 60203), (1364, 54730), (1430, 52204), (1612, 46310), (1684, 44330), (1705, 43784), (2015, 37048), (2105, 35464), (2728, 27365), (2860, 26102), (3224, 23155), (3368, 22165), (3410, 21892), (4030, 18524), (4210, 17732), (4433, 16840), (4631, 16120), (5473, 13640), (5720, 13051), (6820, 10946), (8060, 9262), (8420, 8866)]