28442440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{659}}^1$

素因数の和:766

約数の個数: 64

約数和(自身を含む): 69854400

約数和(自身を除く): 41411960

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 83, 104, 130, 166, 260, 332, 415, 520, 659, 664, 830, 1079, 1318, 1660, 2158, 2636, 3295, 3320, 4316, 5272, 5395, 6590, 8567, 8632, 10790, 13180, 17134, 21580, 26360, 34268, 42835, 43160, 54697, 68536, 85670, 109394, 171340, 218788, 273485, 342680, 437576, 546970, 711061, 1093940, 1422122, 2187880, 2844244, 3555305, 5688488, 7110610, 14221220, 28442440]

約数ペア:

[(1, 28442440), (2, 14221220), (4, 7110610), (5, 5688488), (8, 3555305), (10, 2844244), (13, 2187880), (20, 1422122), (26, 1093940), (40, 711061), (52, 546970), (65, 437576), (83, 342680), (104, 273485), (130, 218788), (166, 171340), (260, 109394), (332, 85670), (415, 68536), (520, 54697), (659, 43160), (664, 42835), (830, 34268), (1079, 26360), (1318, 21580), (1660, 17134), (2158, 13180), (2636, 10790), (3295, 8632), (3320, 8567), (4316, 6590), (5272, 5395)]