418156940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{163}}^1$

素因数の和:391

約数の個数: 96

約数和(自身を含む): 957707520

約数和(自身を除く): 539550580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 43, 76, 86, 95, 157, 163, 172, 190, 215, 314, 326, 380, 430, 628, 652, 785, 815, 817, 860, 1570, 1630, 1634, 2983, 3097, 3140, 3260, 3268, 4085, 5966, 6194, 6751, 7009, 8170, 11932, 12388, 13502, 14018, 14915, 15485, 16340, 25591, 27004, 28036, 29830, 30970, 33755, 35045, 51182, 59660, 61940, 67510, 70090, 102364, 127955, 128269, 133171, 135020, 140180, 255910, 256538, 266342, 486229, 511820, 513076, 532684, 641345, 665855, 972458, 1100413, 1282690, 1331710, 1944916, 2200826, 2431145, 2565380, 2663420, 4401652, 4862290, 5502065, 9724580, 11004130, 20907847, 22008260, 41815694, 83631388, 104539235, 209078470, 418156940]

約数ペア:

[(1, 418156940), (2, 209078470), (4, 104539235), (5, 83631388), (10, 41815694), (19, 22008260), (20, 20907847), (38, 11004130), (43, 9724580), (76, 5502065), (86, 4862290), (95, 4401652), (157, 2663420), (163, 2565380), (172, 2431145), (190, 2200826), (215, 1944916), (314, 1331710), (326, 1282690), (380, 1100413), (430, 972458), (628, 665855), (652, 641345), (785, 532684), (815, 513076), (817, 511820), (860, 486229), (1570, 266342), (1630, 256538), (1634, 255910), (2983, 140180), (3097, 135020), (3140, 133171), (3260, 128269), (3268, 127955), (4085, 102364), (5966, 70090), (6194, 67510), (6751, 61940), (7009, 59660), (8170, 51182), (11932, 35045), (12388, 33755), (13502, 30970), (14018, 29830), (14915, 28036), (15485, 27004), (16340, 25591)]