1617720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1$

素因数の和:105

約数の個数: 128

約数和(自身を含む): 5624640

約数和(自身を除く): 4006920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 17, 20, 24, 26, 30, 34, 39, 40, 51, 52, 60, 61, 65, 68, 78, 85, 102, 104, 120, 122, 130, 136, 156, 170, 183, 195, 204, 221, 244, 255, 260, 305, 312, 340, 366, 390, 408, 442, 488, 510, 520, 610, 663, 680, 732, 780, 793, 884, 915, 1020, 1037, 1105, 1220, 1326, 1464, 1560, 1586, 1768, 1830, 2040, 2074, 2210, 2379, 2440, 2652, 3111, 3172, 3315, 3660, 3965, 4148, 4420, 4758, 5185, 5304, 6222, 6344, 6630, 7320, 7930, 8296, 8840, 9516, 10370, 11895, 12444, 13260, 13481, 15555, 15860, 19032, 20740, 23790, 24888, 26520, 26962, 31110, 31720, 40443, 41480, 47580, 53924, 62220, 67405, 80886, 95160, 107848, 124440, 134810, 161772, 202215, 269620, 323544, 404430, 539240, 808860, 1617720]

約数ペア:

[(1, 1617720), (2, 808860), (3, 539240), (4, 404430), (5, 323544), (6, 269620), (8, 202215), (10, 161772), (12, 134810), (13, 124440), (15, 107848), (17, 95160), (20, 80886), (24, 67405), (26, 62220), (30, 53924), (34, 47580), (39, 41480), (40, 40443), (51, 31720), (52, 31110), (60, 26962), (61, 26520), (65, 24888), (68, 23790), (78, 20740), (85, 19032), (102, 15860), (104, 15555), (120, 13481), (122, 13260), (130, 12444), (136, 11895), (156, 10370), (170, 9516), (183, 8840), (195, 8296), (204, 7930), (221, 7320), (244, 6630), (255, 6344), (260, 6222), (305, 5304), (312, 5185), (340, 4758), (366, 4420), (390, 4148), (408, 3965), (442, 3660), (488, 3315), (510, 3172), (520, 3111), (610, 2652), (663, 2440), (680, 2379), (732, 2210), (780, 2074), (793, 2040), (884, 1830), (915, 1768), (1020, 1586), (1037, 1560), (1105, 1464), (1220, 1326)]