1987650

素因数分解:

$2^1\times 3^2\times 5^2\times 7^1\times {\mathrm{631}}^1$

素因数の和:656

約数の個数: 72

約数和(自身を含む): 6112704

約数和(自身を除く): 4125054

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 25, 30, 35, 42, 45, 50, 63, 70, 75, 90, 105, 126, 150, 175, 210, 225, 315, 350, 450, 525, 630, 631, 1050, 1262, 1575, 1893, 3150, 3155, 3786, 4417, 5679, 6310, 8834, 9465, 11358, 13251, 15775, 18930, 22085, 26502, 28395, 31550, 39753, 44170, 47325, 56790, 66255, 79506, 94650, 110425, 132510, 141975, 198765, 220850, 283950, 331275, 397530, 662550, 993825, 1987650]

約数ペア:

[(1, 1987650), (2, 993825), (3, 662550), (5, 397530), (6, 331275), (7, 283950), (9, 220850), (10, 198765), (14, 141975), (15, 132510), (18, 110425), (21, 94650), (25, 79506), (30, 66255), (35, 56790), (42, 47325), (45, 44170), (50, 39753), (63, 31550), (70, 28395), (75, 26502), (90, 22085), (105, 18930), (126, 15775), (150, 13251), (175, 11358), (210, 9465), (225, 8834), (315, 6310), (350, 5679), (450, 4417), (525, 3786), (630, 3155), (631, 3150), (1050, 1893), (1262, 1575)]