18208840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{97}}^1$

素因数の和:159

約数の個数: 96

約数和(自身を含む): 47045880

約数和(自身を除く): 28837040

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 76, 95, 97, 104, 130, 152, 190, 194, 247, 260, 361, 380, 388, 485, 494, 520, 722, 760, 776, 970, 988, 1235, 1261, 1444, 1805, 1843, 1940, 1976, 2470, 2522, 2888, 3610, 3686, 3880, 4693, 4940, 5044, 6305, 7220, 7372, 9215, 9386, 9880, 10088, 12610, 14440, 14744, 18430, 18772, 23465, 23959, 25220, 35017, 36860, 37544, 46930, 47918, 50440, 70034, 73720, 93860, 95836, 119795, 140068, 175085, 187720, 191672, 239590, 280136, 350170, 455221, 479180, 700340, 910442, 958360, 1400680, 1820884, 2276105, 3641768, 4552210, 9104420, 18208840]

約数ペア:

[(1, 18208840), (2, 9104420), (4, 4552210), (5, 3641768), (8, 2276105), (10, 1820884), (13, 1400680), (19, 958360), (20, 910442), (26, 700340), (38, 479180), (40, 455221), (52, 350170), (65, 280136), (76, 239590), (95, 191672), (97, 187720), (104, 175085), (130, 140068), (152, 119795), (190, 95836), (194, 93860), (247, 73720), (260, 70034), (361, 50440), (380, 47918), (388, 46930), (485, 37544), (494, 36860), (520, 35017), (722, 25220), (760, 23959), (776, 23465), (970, 18772), (988, 18430), (1235, 14744), (1261, 14440), (1444, 12610), (1805, 10088), (1843, 9880), (1940, 9386), (1976, 9215), (2470, 7372), (2522, 7220), (2888, 6305), (3610, 5044), (3686, 4940), (3880, 4693)]