28591500

素因数分解:

$2^2\times 3^1\times 5^3\times 7^2\times {\mathrm{389}}^1$

素因数の和:425

約数の個数: 144

約数和(自身を含む): 97100640

約数和(自身を除く): 68509140

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 49, 50, 60, 70, 75, 84, 98, 100, 105, 125, 140, 147, 150, 175, 196, 210, 245, 250, 294, 300, 350, 375, 389, 420, 490, 500, 525, 588, 700, 735, 750, 778, 875, 980, 1050, 1167, 1225, 1470, 1500, 1556, 1750, 1945, 2100, 2334, 2450, 2625, 2723, 2940, 3500, 3675, 3890, 4668, 4900, 5250, 5446, 5835, 6125, 7350, 7780, 8169, 9725, 10500, 10892, 11670, 12250, 13615, 14700, 16338, 18375, 19061, 19450, 23340, 24500, 27230, 29175, 32676, 36750, 38122, 38900, 40845, 48625, 54460, 57183, 58350, 68075, 73500, 76244, 81690, 95305, 97250, 114366, 116700, 136150, 145875, 163380, 190610, 194500, 204225, 228732, 272300, 285915, 291750, 340375, 381220, 408450, 476525, 571830, 583500, 680750, 816900, 953050, 1021125, 1143660, 1361500, 1429575, 1906100, 2042250, 2382625, 2859150, 4084500, 4765250, 5718300, 7147875, 9530500, 14295750, 28591500]

約数ペア:

[(1, 28591500), (2, 14295750), (3, 9530500), (4, 7147875), (5, 5718300), (6, 4765250), (7, 4084500), (10, 2859150), (12, 2382625), (14, 2042250), (15, 1906100), (20, 1429575), (21, 1361500), (25, 1143660), (28, 1021125), (30, 953050), (35, 816900), (42, 680750), (49, 583500), (50, 571830), (60, 476525), (70, 408450), (75, 381220), (84, 340375), (98, 291750), (100, 285915), (105, 272300), (125, 228732), (140, 204225), (147, 194500), (150, 190610), (175, 163380), (196, 145875), (210, 136150), (245, 116700), (250, 114366), (294, 97250), (300, 95305), (350, 81690), (375, 76244), (389, 73500), (420, 68075), (490, 58350), (500, 57183), (525, 54460), (588, 48625), (700, 40845), (735, 38900), (750, 38122), (778, 36750), (875, 32676), (980, 29175), (1050, 27230), (1167, 24500), (1225, 23340), (1470, 19450), (1500, 19061), (1556, 18375), (1750, 16338), (1945, 14700), (2100, 13615), (2334, 12250), (2450, 11670), (2625, 10892), (2723, 10500), (2940, 9725), (3500, 8169), (3675, 7780), (3890, 7350), (4668, 6125), (4900, 5835), (5250, 5446)]