21082979880

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{65581}}^1$

素因数の和:65664

約数の個数: 192

約数和(自身を含む): 73661702400

約数和(自身を除く): 52578722520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 30, 36, 38, 40, 45, 47, 57, 60, 72, 76, 90, 94, 95, 114, 120, 141, 152, 171, 180, 188, 190, 228, 235, 282, 285, 342, 360, 376, 380, 423, 456, 470, 564, 570, 684, 705, 760, 846, 855, 893, 940, 1128, 1140, 1368, 1410, 1692, 1710, 1786, 1880, 2115, 2280, 2679, 2820, 3384, 3420, 3572, 4230, 4465, 5358, 5640, 6840, 7144, 8037, 8460, 8930, 10716, 13395, 16074, 16920, 17860, 21432, 26790, 32148, 35720, 40185, 53580, 64296, 65581, 80370, 107160, 131162, 160740, 196743, 262324, 321480, 327905, 393486, 524648, 590229, 655810, 786972, 983715, 1180458, 1246039, 1311620, 1573944, 1967430, 2360916, 2492078, 2623240, 2951145, 3082307, 3738117, 3934860, 4721832, 4984156, 5902290, 6164614, 6230195, 7476234, 7869720, 9246921, 9968312, 11214351, 11804580, 12329228, 12460390, 14952468, 15411535, 18493842, 18690585, 22428702, 23609160, 24658456, 24920780, 27740763, 29904936, 30823070, 36987684, 37381170, 44857404, 46234605, 49841560, 55481526, 56071755, 58563833, 61646140, 73975368, 74762340, 89714808, 92469210, 110963052, 112143510, 117127666, 123292280, 138703815, 149524680, 175691499, 184938420, 221926104, 224287020, 234255332, 277407630, 292819165, 351382998, 369876840, 448574040, 468510664, 527074497, 554815260, 585638330, 702765996, 878457495, 1054148994, 1109630520, 1171276660, 1405531992, 1756914990, 2108297988, 2342553320, 2635372485, 3513829980, 4216595976, 5270744970, 7027659960, 10541489940, 21082979880]

約数ペア:

[(1, 21082979880), (2, 10541489940), (3, 7027659960), (4, 5270744970), (5, 4216595976), (6, 3513829980), (8, 2635372485), (9, 2342553320), (10, 2108297988), (12, 1756914990), (15, 1405531992), (18, 1171276660), (19, 1109630520), (20, 1054148994), (24, 878457495), (30, 702765996), (36, 585638330), (38, 554815260), (40, 527074497), (45, 468510664), (47, 448574040), (57, 369876840), (60, 351382998), (72, 292819165), (76, 277407630), (90, 234255332), (94, 224287020), (95, 221926104), (114, 184938420), (120, 175691499), (141, 149524680), (152, 138703815), (171, 123292280), (180, 117127666), (188, 112143510), (190, 110963052), (228, 92469210), (235, 89714808), (282, 74762340), (285, 73975368), (342, 61646140), (360, 58563833), (376, 56071755), (380, 55481526), (423, 49841560), (456, 46234605), (470, 44857404), (564, 37381170), (570, 36987684), (684, 30823070), (705, 29904936), (760, 27740763), (846, 24920780), (855, 24658456), (893, 23609160), (940, 22428702), (1128, 18690585), (1140, 18493842), (1368, 15411535), (1410, 14952468), (1692, 12460390), (1710, 12329228), (1786, 11804580), (1880, 11214351), (2115, 9968312), (2280, 9246921), (2679, 7869720), (2820, 7476234), (3384, 6230195), (3420, 6164614), (3572, 5902290), (4230, 4984156), (4465, 4721832), (5358, 3934860), (5640, 3738117), (6840, 3082307), (7144, 2951145), (8037, 2623240), (8460, 2492078), (8930, 2360916), (10716, 1967430), (13395, 1573944), (16074, 1311620), (16920, 1246039), (17860, 1180458), (21432, 983715), (26790, 786972), (32148, 655810), (35720, 590229), (40185, 524648), (53580, 393486), (64296, 327905), (65581, 321480), (80370, 262324), (107160, 196743), (131162, 160740)]