19980459850

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{389}}^1\times {\mathrm{4159}}^1$

素因数の和:4592

約数の個数: 96

約数和(自身を含む): 42247296000

約数和(自身を除く): 22266836150

約数列:

[1, 2, 5, 10, 13, 19, 25, 26, 38, 50, 65, 95, 130, 190, 247, 325, 389, 475, 494, 650, 778, 950, 1235, 1945, 2470, 3890, 4159, 5057, 6175, 7391, 8318, 9725, 10114, 12350, 14782, 19450, 20795, 25285, 36955, 41590, 50570, 54067, 73910, 79021, 96083, 103975, 108134, 126425, 158042, 184775, 192166, 207950, 252850, 270335, 369550, 395105, 480415, 540670, 790210, 960830, 1027273, 1351675, 1617851, 1975525, 2054546, 2402075, 2703350, 3235702, 3951050, 4804150, 5136365, 8089255, 10272730, 16178510, 21032063, 25681825, 30739169, 40446275, 42064126, 51363650, 61478338, 80892550, 105160315, 153695845, 210320630, 307391690, 399609197, 525801575, 768479225, 799218394, 1051603150, 1536958450, 1998045985, 3996091970, 9990229925, 19980459850]

約数ペア:

[(1, 19980459850), (2, 9990229925), (5, 3996091970), (10, 1998045985), (13, 1536958450), (19, 1051603150), (25, 799218394), (26, 768479225), (38, 525801575), (50, 399609197), (65, 307391690), (95, 210320630), (130, 153695845), (190, 105160315), (247, 80892550), (325, 61478338), (389, 51363650), (475, 42064126), (494, 40446275), (650, 30739169), (778, 25681825), (950, 21032063), (1235, 16178510), (1945, 10272730), (2470, 8089255), (3890, 5136365), (4159, 4804150), (5057, 3951050), (6175, 3235702), (7391, 2703350), (8318, 2402075), (9725, 2054546), (10114, 1975525), (12350, 1617851), (14782, 1351675), (19450, 1027273), (20795, 960830), (25285, 790210), (36955, 540670), (41590, 480415), (50570, 395105), (54067, 369550), (73910, 270335), (79021, 252850), (96083, 207950), (103975, 192166), (108134, 184775), (126425, 158042)]