401020100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^2\times {\mathrm{61}}^1\times {\mathrm{389}}^1$

素因数の和:490

約数の個数: 108

約数和(自身を含む): 960211980

約数和(自身を除く): 559191880

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 61, 65, 100, 122, 130, 169, 244, 260, 305, 325, 338, 389, 610, 650, 676, 778, 793, 845, 1220, 1300, 1525, 1556, 1586, 1690, 1945, 3050, 3172, 3380, 3890, 3965, 4225, 5057, 6100, 7780, 7930, 8450, 9725, 10114, 10309, 15860, 16900, 19450, 19825, 20228, 20618, 23729, 25285, 38900, 39650, 41236, 47458, 50570, 51545, 65741, 79300, 94916, 101140, 103090, 118645, 126425, 131482, 206180, 237290, 252850, 257725, 262964, 308477, 328705, 474580, 505700, 515450, 593225, 616954, 657410, 1030900, 1186450, 1233908, 1314820, 1542385, 1643525, 2372900, 3084770, 3287050, 4010201, 6169540, 6574100, 7711925, 8020402, 15423850, 16040804, 20051005, 30847700, 40102010, 80204020, 100255025, 200510050, 401020100]

約数ペア:

[(1, 401020100), (2, 200510050), (4, 100255025), (5, 80204020), (10, 40102010), (13, 30847700), (20, 20051005), (25, 16040804), (26, 15423850), (50, 8020402), (52, 7711925), (61, 6574100), (65, 6169540), (100, 4010201), (122, 3287050), (130, 3084770), (169, 2372900), (244, 1643525), (260, 1542385), (305, 1314820), (325, 1233908), (338, 1186450), (389, 1030900), (610, 657410), (650, 616954), (676, 593225), (778, 515450), (793, 505700), (845, 474580), (1220, 328705), (1300, 308477), (1525, 262964), (1556, 257725), (1586, 252850), (1690, 237290), (1945, 206180), (3050, 131482), (3172, 126425), (3380, 118645), (3890, 103090), (3965, 101140), (4225, 94916), (5057, 79300), (6100, 65741), (7780, 51545), (7930, 50570), (8450, 47458), (9725, 41236), (10114, 39650), (10309, 38900), (15860, 25285), (16900, 23729), (19450, 20618), (19825, 20228)]