20297700

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{1187}}^1$

素因数の和:1226

約数の個数: 108

約数和(自身を含む): 67026960

約数和(自身を除く): 46729260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 25, 30, 36, 38, 45, 50, 57, 60, 75, 76, 90, 95, 100, 114, 150, 171, 180, 190, 225, 228, 285, 300, 342, 380, 450, 475, 570, 684, 855, 900, 950, 1140, 1187, 1425, 1710, 1900, 2374, 2850, 3420, 3561, 4275, 4748, 5700, 5935, 7122, 8550, 10683, 11870, 14244, 17100, 17805, 21366, 22553, 23740, 29675, 35610, 42732, 45106, 53415, 59350, 67659, 71220, 89025, 90212, 106830, 112765, 118700, 135318, 178050, 202977, 213660, 225530, 267075, 270636, 338295, 356100, 405954, 451060, 534150, 563825, 676590, 811908, 1014885, 1068300, 1127650, 1353180, 1691475, 2029770, 2255300, 3382950, 4059540, 5074425, 6765900, 10148850, 20297700]

約数ペア:

[(1, 20297700), (2, 10148850), (3, 6765900), (4, 5074425), (5, 4059540), (6, 3382950), (9, 2255300), (10, 2029770), (12, 1691475), (15, 1353180), (18, 1127650), (19, 1068300), (20, 1014885), (25, 811908), (30, 676590), (36, 563825), (38, 534150), (45, 451060), (50, 405954), (57, 356100), (60, 338295), (75, 270636), (76, 267075), (90, 225530), (95, 213660), (100, 202977), (114, 178050), (150, 135318), (171, 118700), (180, 112765), (190, 106830), (225, 90212), (228, 89025), (285, 71220), (300, 67659), (342, 59350), (380, 53415), (450, 45106), (475, 42732), (570, 35610), (684, 29675), (855, 23740), (900, 22553), (950, 21366), (1140, 17805), (1187, 17100), (1425, 14244), (1710, 11870), (1900, 10683), (2374, 8550), (2850, 7122), (3420, 5935), (3561, 5700), (4275, 4748)]