81944080

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{677}}^1$

素因数の和:796

約数の個数: 80

約数和(自身を含む): 204294960

約数和(自身を除く): 122350880

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 89, 136, 170, 178, 272, 340, 356, 445, 677, 680, 712, 890, 1354, 1360, 1424, 1513, 1780, 2708, 3026, 3385, 3560, 5416, 6052, 6770, 7120, 7565, 10832, 11509, 12104, 13540, 15130, 23018, 24208, 27080, 30260, 46036, 54160, 57545, 60253, 60520, 92072, 115090, 120506, 121040, 184144, 230180, 241012, 301265, 460360, 482024, 602530, 920720, 964048, 1024301, 1205060, 2048602, 2410120, 4097204, 4820240, 5121505, 8194408, 10243010, 16388816, 20486020, 40972040, 81944080]

約数ペア:

[(1, 81944080), (2, 40972040), (4, 20486020), (5, 16388816), (8, 10243010), (10, 8194408), (16, 5121505), (17, 4820240), (20, 4097204), (34, 2410120), (40, 2048602), (68, 1205060), (80, 1024301), (85, 964048), (89, 920720), (136, 602530), (170, 482024), (178, 460360), (272, 301265), (340, 241012), (356, 230180), (445, 184144), (677, 121040), (680, 120506), (712, 115090), (890, 92072), (1354, 60520), (1360, 60253), (1424, 57545), (1513, 54160), (1780, 46036), (2708, 30260), (3026, 27080), (3385, 24208), (3560, 23018), (5416, 15130), (6052, 13540), (6770, 12104), (7120, 11509), (7565, 10832)]