18746520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{197}}^1$

素因数の和:285

約数の個数: 128

約数和(自身を含む): 61871040

約数和(自身を除く): 43124520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 61, 65, 78, 104, 120, 122, 130, 156, 183, 195, 197, 244, 260, 305, 312, 366, 390, 394, 488, 520, 591, 610, 732, 780, 788, 793, 915, 985, 1182, 1220, 1464, 1560, 1576, 1586, 1830, 1970, 2364, 2379, 2440, 2561, 2955, 3172, 3660, 3940, 3965, 4728, 4758, 5122, 5910, 6344, 7320, 7683, 7880, 7930, 9516, 10244, 11820, 11895, 12017, 12805, 15366, 15860, 19032, 20488, 23640, 23790, 24034, 25610, 30732, 31720, 36051, 38415, 47580, 48068, 51220, 60085, 61464, 72102, 76830, 95160, 96136, 102440, 120170, 144204, 153660, 156221, 180255, 240340, 288408, 307320, 312442, 360510, 468663, 480680, 624884, 721020, 781105, 937326, 1249768, 1442040, 1562210, 1874652, 2343315, 3124420, 3749304, 4686630, 6248840, 9373260, 18746520]

約数ペア:

[(1, 18746520), (2, 9373260), (3, 6248840), (4, 4686630), (5, 3749304), (6, 3124420), (8, 2343315), (10, 1874652), (12, 1562210), (13, 1442040), (15, 1249768), (20, 937326), (24, 781105), (26, 721020), (30, 624884), (39, 480680), (40, 468663), (52, 360510), (60, 312442), (61, 307320), (65, 288408), (78, 240340), (104, 180255), (120, 156221), (122, 153660), (130, 144204), (156, 120170), (183, 102440), (195, 96136), (197, 95160), (244, 76830), (260, 72102), (305, 61464), (312, 60085), (366, 51220), (390, 48068), (394, 47580), (488, 38415), (520, 36051), (591, 31720), (610, 30732), (732, 25610), (780, 24034), (788, 23790), (793, 23640), (915, 20488), (985, 19032), (1182, 15860), (1220, 15366), (1464, 12805), (1560, 12017), (1576, 11895), (1586, 11820), (1830, 10244), (1970, 9516), (2364, 7930), (2379, 7880), (2440, 7683), (2561, 7320), (2955, 6344), (3172, 5910), (3660, 5122), (3940, 4758), (3965, 4728)]