239720520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{4957}}^1$

素因数の和:5015

約数の個数: 128

約数和(自身を含む): 799626240

約数和(自身を除く): 559905720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 31, 39, 40, 52, 60, 62, 65, 78, 93, 104, 120, 124, 130, 155, 156, 186, 195, 248, 260, 310, 312, 372, 390, 403, 465, 520, 620, 744, 780, 806, 930, 1209, 1240, 1560, 1612, 1860, 2015, 2418, 3224, 3720, 4030, 4836, 4957, 6045, 8060, 9672, 9914, 12090, 14871, 16120, 19828, 24180, 24785, 29742, 39656, 48360, 49570, 59484, 64441, 74355, 99140, 118968, 128882, 148710, 153667, 193323, 198280, 257764, 297420, 307334, 322205, 386646, 461001, 515528, 594840, 614668, 644410, 768335, 773292, 922002, 966615, 1229336, 1288820, 1536670, 1546584, 1844004, 1933230, 1997671, 2305005, 2577640, 3073340, 3688008, 3866460, 3995342, 4610010, 5993013, 6146680, 7732920, 7990684, 9220020, 9988355, 11986026, 15981368, 18440040, 19976710, 23972052, 29965065, 39953420, 47944104, 59930130, 79906840, 119860260, 239720520]

約数ペア:

[(1, 239720520), (2, 119860260), (3, 79906840), (4, 59930130), (5, 47944104), (6, 39953420), (8, 29965065), (10, 23972052), (12, 19976710), (13, 18440040), (15, 15981368), (20, 11986026), (24, 9988355), (26, 9220020), (30, 7990684), (31, 7732920), (39, 6146680), (40, 5993013), (52, 4610010), (60, 3995342), (62, 3866460), (65, 3688008), (78, 3073340), (93, 2577640), (104, 2305005), (120, 1997671), (124, 1933230), (130, 1844004), (155, 1546584), (156, 1536670), (186, 1288820), (195, 1229336), (248, 966615), (260, 922002), (310, 773292), (312, 768335), (372, 644410), (390, 614668), (403, 594840), (465, 515528), (520, 461001), (620, 386646), (744, 322205), (780, 307334), (806, 297420), (930, 257764), (1209, 198280), (1240, 193323), (1560, 153667), (1612, 148710), (1860, 128882), (2015, 118968), (2418, 99140), (3224, 74355), (3720, 64441), (4030, 59484), (4836, 49570), (4957, 48360), (6045, 39656), (8060, 29742), (9672, 24785), (9914, 24180), (12090, 19828), (14871, 16120)]