400198500

素因数分解:

$2^2\times 3^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{6841}}^1$

素因数の和:6879

約数の個数: 144

約数和(自身を含む): 1359806448

約数和(自身を除く): 959607948

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 25, 26, 30, 36, 39, 45, 50, 52, 60, 65, 75, 78, 90, 100, 117, 125, 130, 150, 156, 180, 195, 225, 234, 250, 260, 300, 325, 375, 390, 450, 468, 500, 585, 650, 750, 780, 900, 975, 1125, 1170, 1300, 1500, 1625, 1950, 2250, 2340, 2925, 3250, 3900, 4500, 4875, 5850, 6500, 6841, 9750, 11700, 13682, 14625, 19500, 20523, 27364, 29250, 34205, 41046, 58500, 61569, 68410, 82092, 88933, 102615, 123138, 136820, 171025, 177866, 205230, 246276, 266799, 307845, 342050, 355732, 410460, 444665, 513075, 533598, 615690, 684100, 800397, 855125, 889330, 1026150, 1067196, 1231380, 1333995, 1539225, 1600794, 1710250, 1778660, 2052300, 2223325, 2565375, 2667990, 3078450, 3201588, 3420500, 4001985, 4446650, 5130750, 5335980, 6156900, 6669975, 7696125, 8003970, 8893300, 10261500, 11116625, 13339950, 15392250, 16007940, 20009925, 22233250, 26679900, 30784500, 33349875, 40019850, 44466500, 66699750, 80039700, 100049625, 133399500, 200099250, 400198500]

約数ペア:

[(1, 400198500), (2, 200099250), (3, 133399500), (4, 100049625), (5, 80039700), (6, 66699750), (9, 44466500), (10, 40019850), (12, 33349875), (13, 30784500), (15, 26679900), (18, 22233250), (20, 20009925), (25, 16007940), (26, 15392250), (30, 13339950), (36, 11116625), (39, 10261500), (45, 8893300), (50, 8003970), (52, 7696125), (60, 6669975), (65, 6156900), (75, 5335980), (78, 5130750), (90, 4446650), (100, 4001985), (117, 3420500), (125, 3201588), (130, 3078450), (150, 2667990), (156, 2565375), (180, 2223325), (195, 2052300), (225, 1778660), (234, 1710250), (250, 1600794), (260, 1539225), (300, 1333995), (325, 1231380), (375, 1067196), (390, 1026150), (450, 889330), (468, 855125), (500, 800397), (585, 684100), (650, 615690), (750, 533598), (780, 513075), (900, 444665), (975, 410460), (1125, 355732), (1170, 342050), (1300, 307845), (1500, 266799), (1625, 246276), (1950, 205230), (2250, 177866), (2340, 171025), (2925, 136820), (3250, 123138), (3900, 102615), (4500, 88933), (4875, 82092), (5850, 68410), (6500, 61569), (6841, 58500), (9750, 41046), (11700, 34205), (13682, 29250), (14625, 27364), (19500, 20523)]