21982500

素因数分解:

$2^2\times 3^2\times 5^4\times {\mathrm{977}}^1$

素因数の和:1007

約数の個数: 90

約数和(自身を含む): 69507438

約数和(自身を除く): 47524938

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 100, 125, 150, 180, 225, 250, 300, 375, 450, 500, 625, 750, 900, 977, 1125, 1250, 1500, 1875, 1954, 2250, 2500, 2931, 3750, 3908, 4500, 4885, 5625, 5862, 7500, 8793, 9770, 11250, 11724, 14655, 17586, 19540, 22500, 24425, 29310, 35172, 43965, 48850, 58620, 73275, 87930, 97700, 122125, 146550, 175860, 219825, 244250, 293100, 366375, 439650, 488500, 610625, 732750, 879300, 1099125, 1221250, 1465500, 1831875, 2198250, 2442500, 3663750, 4396500, 5495625, 7327500, 10991250, 21982500]

約数ペア:

[(1, 21982500), (2, 10991250), (3, 7327500), (4, 5495625), (5, 4396500), (6, 3663750), (9, 2442500), (10, 2198250), (12, 1831875), (15, 1465500), (18, 1221250), (20, 1099125), (25, 879300), (30, 732750), (36, 610625), (45, 488500), (50, 439650), (60, 366375), (75, 293100), (90, 244250), (100, 219825), (125, 175860), (150, 146550), (180, 122125), (225, 97700), (250, 87930), (300, 73275), (375, 58620), (450, 48850), (500, 43965), (625, 35172), (750, 29310), (900, 24425), (977, 22500), (1125, 19540), (1250, 17586), (1500, 14655), (1875, 11724), (1954, 11250), (2250, 9770), (2500, 8793), (2931, 7500), (3750, 5862), (3908, 5625), (4500, 4885)]