157213160

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1$

素因数の和:235

約数の個数: 128

約数和(自身を含む): 399168000

約数和(自身を除く): 241954840

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 43, 52, 65, 79, 86, 89, 104, 130, 158, 172, 178, 215, 260, 316, 344, 356, 395, 430, 445, 520, 559, 632, 712, 790, 860, 890, 1027, 1118, 1157, 1580, 1720, 1780, 2054, 2236, 2314, 2795, 3160, 3397, 3560, 3827, 4108, 4472, 4628, 5135, 5590, 5785, 6794, 7031, 7654, 8216, 9256, 10270, 11180, 11570, 13588, 14062, 15308, 16985, 19135, 20540, 22360, 23140, 27176, 28124, 30616, 33970, 35155, 38270, 41080, 44161, 46280, 49751, 56248, 67940, 70310, 76540, 88322, 91403, 99502, 135880, 140620, 153080, 176644, 182806, 199004, 220805, 248755, 281240, 302333, 353288, 365612, 398008, 441610, 457015, 497510, 604666, 731224, 883220, 914030, 995020, 1209332, 1511665, 1766440, 1828060, 1990040, 2418664, 3023330, 3656120, 3930329, 6046660, 7860658, 12093320, 15721316, 19651645, 31442632, 39303290, 78606580, 157213160]

約数ペア:

[(1, 157213160), (2, 78606580), (4, 39303290), (5, 31442632), (8, 19651645), (10, 15721316), (13, 12093320), (20, 7860658), (26, 6046660), (40, 3930329), (43, 3656120), (52, 3023330), (65, 2418664), (79, 1990040), (86, 1828060), (89, 1766440), (104, 1511665), (130, 1209332), (158, 995020), (172, 914030), (178, 883220), (215, 731224), (260, 604666), (316, 497510), (344, 457015), (356, 441610), (395, 398008), (430, 365612), (445, 353288), (520, 302333), (559, 281240), (632, 248755), (712, 220805), (790, 199004), (860, 182806), (890, 176644), (1027, 153080), (1118, 140620), (1157, 135880), (1580, 99502), (1720, 91403), (1780, 88322), (2054, 76540), (2236, 70310), (2314, 67940), (2795, 56248), (3160, 49751), (3397, 46280), (3560, 44161), (3827, 41080), (4108, 38270), (4472, 35155), (4628, 33970), (5135, 30616), (5590, 28124), (5785, 27176), (6794, 23140), (7031, 22360), (7654, 20540), (8216, 19135), (9256, 16985), (10270, 15308), (11180, 14062), (11570, 13588)]