19982820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1$

素因数の和:190

約数の個数: 192

約数和(自身を含む): 70108416

約数和(自身を除く): 50125596

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 13, 15, 17, 20, 22, 26, 30, 33, 34, 39, 44, 51, 52, 55, 60, 65, 66, 68, 78, 85, 102, 110, 130, 132, 137, 143, 156, 165, 170, 187, 195, 204, 220, 221, 255, 260, 274, 286, 330, 340, 374, 390, 411, 429, 442, 510, 548, 561, 572, 660, 663, 685, 715, 748, 780, 822, 858, 884, 935, 1020, 1105, 1122, 1326, 1370, 1430, 1507, 1644, 1716, 1781, 1870, 2055, 2145, 2210, 2244, 2329, 2431, 2652, 2740, 2805, 2860, 3014, 3315, 3562, 3740, 4110, 4290, 4420, 4521, 4658, 4862, 5343, 5610, 6028, 6630, 6987, 7124, 7293, 7535, 8220, 8580, 8905, 9042, 9316, 9724, 10686, 11220, 11645, 12155, 13260, 13974, 14586, 15070, 17810, 18084, 19591, 21372, 22605, 23290, 24310, 25619, 26715, 27948, 29172, 30140, 30277, 34935, 35620, 36465, 39182, 45210, 46580, 48620, 51238, 53430, 58773, 60554, 69870, 72930, 76857, 78364, 90420, 90831, 97955, 102476, 106860, 117546, 121108, 128095, 139740, 145860, 151385, 153714, 181662, 195910, 235092, 256190, 293865, 302770, 307428, 333047, 363324, 384285, 391820, 454155, 512380, 587730, 605540, 666094, 768570, 908310, 999141, 1175460, 1332188, 1537140, 1665235, 1816620, 1998282, 3330470, 3996564, 4995705, 6660940, 9991410, 19982820]

約数ペア:

[(1, 19982820), (2, 9991410), (3, 6660940), (4, 4995705), (5, 3996564), (6, 3330470), (10, 1998282), (11, 1816620), (12, 1665235), (13, 1537140), (15, 1332188), (17, 1175460), (20, 999141), (22, 908310), (26, 768570), (30, 666094), (33, 605540), (34, 587730), (39, 512380), (44, 454155), (51, 391820), (52, 384285), (55, 363324), (60, 333047), (65, 307428), (66, 302770), (68, 293865), (78, 256190), (85, 235092), (102, 195910), (110, 181662), (130, 153714), (132, 151385), (137, 145860), (143, 139740), (156, 128095), (165, 121108), (170, 117546), (187, 106860), (195, 102476), (204, 97955), (220, 90831), (221, 90420), (255, 78364), (260, 76857), (274, 72930), (286, 69870), (330, 60554), (340, 58773), (374, 53430), (390, 51238), (411, 48620), (429, 46580), (442, 45210), (510, 39182), (548, 36465), (561, 35620), (572, 34935), (660, 30277), (663, 30140), (685, 29172), (715, 27948), (748, 26715), (780, 25619), (822, 24310), (858, 23290), (884, 22605), (935, 21372), (1020, 19591), (1105, 18084), (1122, 17810), (1326, 15070), (1370, 14586), (1430, 13974), (1507, 13260), (1644, 12155), (1716, 11645), (1781, 11220), (1870, 10686), (2055, 9724), (2145, 9316), (2210, 9042), (2244, 8905), (2329, 8580), (2431, 8220), (2652, 7535), (2740, 7293), (2805, 7124), (2860, 6987), (3014, 6630), (3315, 6028), (3562, 5610), (3740, 5343), (4110, 4862), (4290, 4658), (4420, 4521)]