990450

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:120

約数の個数: 72

約数和(自身を含む): 2785536

約数和(自身を除く): 1795086

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 31, 45, 50, 62, 71, 75, 90, 93, 142, 150, 155, 186, 213, 225, 279, 310, 355, 426, 450, 465, 558, 639, 710, 775, 930, 1065, 1278, 1395, 1550, 1775, 2130, 2201, 2325, 2790, 3195, 3550, 4402, 4650, 5325, 6390, 6603, 6975, 10650, 11005, 13206, 13950, 15975, 19809, 22010, 31950, 33015, 39618, 55025, 66030, 99045, 110050, 165075, 198090, 330150, 495225, 990450]

約数ペア:

[(1, 990450), (2, 495225), (3, 330150), (5, 198090), (6, 165075), (9, 110050), (10, 99045), (15, 66030), (18, 55025), (25, 39618), (30, 33015), (31, 31950), (45, 22010), (50, 19809), (62, 15975), (71, 13950), (75, 13206), (90, 11005), (93, 10650), (142, 6975), (150, 6603), (155, 6390), (186, 5325), (213, 4650), (225, 4402), (279, 3550), (310, 3195), (355, 2790), (426, 2325), (450, 2201), (465, 2130), (558, 1775), (639, 1550), (710, 1395), (775, 1278), (930, 1065)]