66642560

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{3359}}^1$

素因数の和:3409

約数の個数: 64

約数和(自身を含む): 164505600

約数和(自身を除く): 97863040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 620, 640, 992, 1240, 1984, 2480, 3359, 3968, 4960, 6718, 9920, 13436, 16795, 19840, 26872, 33590, 53744, 67180, 104129, 107488, 134360, 208258, 214976, 268720, 416516, 429952, 520645, 537440, 833032, 1041290, 1074880, 1666064, 2082580, 2149760, 3332128, 4165160, 6664256, 8330320, 13328512, 16660640, 33321280, 66642560]

約数ペア:

[(1, 66642560), (2, 33321280), (4, 16660640), (5, 13328512), (8, 8330320), (10, 6664256), (16, 4165160), (20, 3332128), (31, 2149760), (32, 2082580), (40, 1666064), (62, 1074880), (64, 1041290), (80, 833032), (124, 537440), (128, 520645), (155, 429952), (160, 416516), (248, 268720), (310, 214976), (320, 208258), (496, 134360), (620, 107488), (640, 104129), (992, 67180), (1240, 53744), (1984, 33590), (2480, 26872), (3359, 19840), (3968, 16795), (4960, 13436), (6718, 9920)]