18683080

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:135

約数の個数: 128

約数和(自身を含む): 49996800

約数和(自身を除く): 31313720

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 31, 38, 40, 52, 61, 62, 65, 76, 95, 104, 122, 124, 130, 152, 155, 190, 244, 247, 248, 260, 305, 310, 380, 403, 488, 494, 520, 589, 610, 620, 760, 793, 806, 988, 1159, 1178, 1220, 1235, 1240, 1586, 1612, 1891, 1976, 2015, 2318, 2356, 2440, 2470, 2945, 3172, 3224, 3782, 3965, 4030, 4636, 4712, 4940, 5795, 5890, 6344, 7564, 7657, 7930, 8060, 9272, 9455, 9880, 11590, 11780, 15067, 15128, 15314, 15860, 16120, 18910, 23180, 23560, 24583, 30134, 30628, 31720, 35929, 37820, 38285, 46360, 49166, 60268, 61256, 71858, 75335, 75640, 76570, 98332, 120536, 122915, 143716, 150670, 153140, 179645, 196664, 245830, 287432, 301340, 306280, 359290, 467077, 491660, 602680, 718580, 934154, 983320, 1437160, 1868308, 2335385, 3736616, 4670770, 9341540, 18683080]

約数ペア:

[(1, 18683080), (2, 9341540), (4, 4670770), (5, 3736616), (8, 2335385), (10, 1868308), (13, 1437160), (19, 983320), (20, 934154), (26, 718580), (31, 602680), (38, 491660), (40, 467077), (52, 359290), (61, 306280), (62, 301340), (65, 287432), (76, 245830), (95, 196664), (104, 179645), (122, 153140), (124, 150670), (130, 143716), (152, 122915), (155, 120536), (190, 98332), (244, 76570), (247, 75640), (248, 75335), (260, 71858), (305, 61256), (310, 60268), (380, 49166), (403, 46360), (488, 38285), (494, 37820), (520, 35929), (589, 31720), (610, 30628), (620, 30134), (760, 24583), (793, 23560), (806, 23180), (988, 18910), (1159, 16120), (1178, 15860), (1220, 15314), (1235, 15128), (1240, 15067), (1586, 11780), (1612, 11590), (1891, 9880), (1976, 9455), (2015, 9272), (2318, 8060), (2356, 7930), (2440, 7657), (2470, 7564), (2945, 6344), (3172, 5890), (3224, 5795), (3782, 4940), (3965, 4712), (4030, 4636)]