221473340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{12743}}^1$

素因数の和:12842

約数の個数: 48

約数和(自身を含む): 513838080

約数和(自身を除く): 292364740

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 79, 110, 158, 220, 316, 395, 790, 869, 1580, 1738, 3476, 4345, 8690, 12743, 17380, 25486, 50972, 63715, 127430, 140173, 254860, 280346, 560692, 700865, 1006697, 1401730, 2013394, 2803460, 4026788, 5033485, 10066970, 11073667, 20133940, 22147334, 44294668, 55368335, 110736670, 221473340]

約数ペア:

[(1, 221473340), (2, 110736670), (4, 55368335), (5, 44294668), (10, 22147334), (11, 20133940), (20, 11073667), (22, 10066970), (44, 5033485), (55, 4026788), (79, 2803460), (110, 2013394), (158, 1401730), (220, 1006697), (316, 700865), (395, 560692), (790, 280346), (869, 254860), (1580, 140173), (1738, 127430), (3476, 63715), (4345, 50972), (8690, 25486), (12743, 17380)]