18979095200

素因数分解:

$2^5\times 5^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{25703}}^1$

素因数の和:25807

約数の個数: 144

約数和(自身を含む): 50601511296

約数和(自身を除く): 31622416096

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 65, 71, 80, 100, 104, 130, 142, 160, 200, 208, 260, 284, 325, 355, 400, 416, 520, 568, 650, 710, 800, 923, 1040, 1136, 1300, 1420, 1775, 1846, 2080, 2272, 2600, 2840, 3550, 3692, 4615, 5200, 5680, 7100, 7384, 9230, 10400, 11360, 14200, 14768, 18460, 23075, 25703, 28400, 29536, 36920, 46150, 51406, 56800, 73840, 92300, 102812, 128515, 147680, 184600, 205624, 257030, 334139, 369200, 411248, 514060, 642575, 668278, 738400, 822496, 1028120, 1285150, 1336556, 1670695, 1824913, 2056240, 2570300, 2673112, 3341390, 3649826, 4112480, 5140600, 5346224, 6682780, 7299652, 8353475, 9124565, 10281200, 10692448, 13365560, 14599304, 16706950, 18249130, 20562400, 23723869, 26731120, 29198608, 33413900, 36498260, 45622825, 47447738, 53462240, 58397216, 66827800, 72996520, 91245650, 94895476, 118619345, 133655600, 145993040, 182491300, 189790952, 237238690, 267311200, 291986080, 364982600, 379581904, 474477380, 593096725, 729965200, 759163808, 948954760, 1186193450, 1459930400, 1897909520, 2372386900, 3795819040, 4744773800, 9489547600, 18979095200]

約数ペア:

[(1, 18979095200), (2, 9489547600), (4, 4744773800), (5, 3795819040), (8, 2372386900), (10, 1897909520), (13, 1459930400), (16, 1186193450), (20, 948954760), (25, 759163808), (26, 729965200), (32, 593096725), (40, 474477380), (50, 379581904), (52, 364982600), (65, 291986080), (71, 267311200), (80, 237238690), (100, 189790952), (104, 182491300), (130, 145993040), (142, 133655600), (160, 118619345), (200, 94895476), (208, 91245650), (260, 72996520), (284, 66827800), (325, 58397216), (355, 53462240), (400, 47447738), (416, 45622825), (520, 36498260), (568, 33413900), (650, 29198608), (710, 26731120), (800, 23723869), (923, 20562400), (1040, 18249130), (1136, 16706950), (1300, 14599304), (1420, 13365560), (1775, 10692448), (1846, 10281200), (2080, 9124565), (2272, 8353475), (2600, 7299652), (2840, 6682780), (3550, 5346224), (3692, 5140600), (4615, 4112480), (5200, 3649826), (5680, 3341390), (7100, 2673112), (7384, 2570300), (9230, 2056240), (10400, 1824913), (11360, 1670695), (14200, 1336556), (14768, 1285150), (18460, 1028120), (23075, 822496), (25703, 738400), (28400, 668278), (29536, 642575), (36920, 514060), (46150, 411248), (51406, 369200), (56800, 334139), (73840, 257030), (92300, 205624), (102812, 184600), (128515, 147680)]