71880320

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{3623}}^1$

素因数の和:3673

約数の個数: 64

約数和(自身を含む): 177431040

約数和(自身を除く): 105550720

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, 3623, 3968, 4960, 7246, 9920, 14492, 18115, 19840, 28984, 36230, 57968, 72460, 112313, 115936, 144920, 224626, 231872, 289840, 449252, 463744, 561565, 579680, 898504, 1123130, 1159360, 1797008, 2246260, 2318720, 3594016, 4492520, 7188032, 8985040, 14376064, 17970080, 35940160, 71880320]

約数ペア:

[(1, 71880320), (2, 35940160), (4, 17970080), (5, 14376064), (8, 8985040), (10, 7188032), (16, 4492520), (20, 3594016), (31, 2318720), (32, 2246260), (40, 1797008), (62, 1159360), (64, 1123130), (80, 898504), (124, 579680), (128, 561565), (155, 463744), (160, 449252), (248, 289840), (310, 231872), (320, 224626), (496, 144920), (620, 115936), (640, 112313), (992, 72460), (1240, 57968), (1984, 36230), (2480, 28984), (3623, 19840), (3968, 18115), (4960, 14492), (7246, 9920)]