20409869980

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{179}}^1\times {\mathrm{2693}}^1$

素因数の和:2983

約数の個数: 96

約数和(自身を含む): 45213940800

約数和(自身を除く): 24804070820

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 73, 116, 145, 146, 179, 290, 292, 358, 365, 580, 716, 730, 895, 1460, 1790, 2117, 2693, 3580, 4234, 5191, 5386, 8468, 10382, 10585, 10772, 13067, 13465, 20764, 21170, 25955, 26134, 26930, 42340, 51910, 52268, 53860, 65335, 78097, 103820, 130670, 156194, 196589, 261340, 312388, 378943, 390485, 393178, 482047, 757886, 780970, 786356, 964094, 982945, 1515772, 1561940, 1894715, 1928188, 1965890, 2410235, 3789430, 3931780, 4820470, 5701081, 7578860, 9640940, 11402162, 13979363, 22804324, 27958726, 28505405, 35189431, 55917452, 57010810, 69896815, 70378862, 114021620, 139793630, 140757724, 175947155, 279587260, 351894310, 703788620, 1020493499, 2040986998, 4081973996, 5102467495, 10204934990, 20409869980]

約数ペア:

[(1, 20409869980), (2, 10204934990), (4, 5102467495), (5, 4081973996), (10, 2040986998), (20, 1020493499), (29, 703788620), (58, 351894310), (73, 279587260), (116, 175947155), (145, 140757724), (146, 139793630), (179, 114021620), (290, 70378862), (292, 69896815), (358, 57010810), (365, 55917452), (580, 35189431), (716, 28505405), (730, 27958726), (895, 22804324), (1460, 13979363), (1790, 11402162), (2117, 9640940), (2693, 7578860), (3580, 5701081), (4234, 4820470), (5191, 3931780), (5386, 3789430), (8468, 2410235), (10382, 1965890), (10585, 1928188), (10772, 1894715), (13067, 1561940), (13465, 1515772), (20764, 982945), (21170, 964094), (25955, 786356), (26134, 780970), (26930, 757886), (42340, 482047), (51910, 393178), (52268, 390485), (53860, 378943), (65335, 312388), (78097, 261340), (103820, 196589), (130670, 156194)]