18127980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1$

素因数の和:216

約数の個数: 144

約数和(自身を含む): 60662784

約数和(自身を除く): 42534804

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 61, 65, 78, 90, 117, 122, 127, 130, 156, 180, 183, 195, 234, 244, 254, 260, 305, 366, 381, 390, 468, 508, 549, 585, 610, 635, 732, 762, 780, 793, 915, 1098, 1143, 1170, 1220, 1270, 1524, 1586, 1651, 1830, 1905, 2196, 2286, 2340, 2379, 2540, 2745, 3172, 3302, 3660, 3810, 3965, 4572, 4758, 4953, 5490, 5715, 6604, 7137, 7620, 7747, 7930, 8255, 9516, 9906, 10980, 11430, 11895, 14274, 14859, 15494, 15860, 16510, 19812, 22860, 23241, 23790, 24765, 28548, 29718, 30988, 33020, 35685, 38735, 46482, 47580, 49530, 59436, 69723, 71370, 74295, 77470, 92964, 99060, 100711, 116205, 139446, 142740, 148590, 154940, 201422, 232410, 278892, 297180, 302133, 348615, 402844, 464820, 503555, 604266, 697230, 906399, 1007110, 1208532, 1394460, 1510665, 1812798, 2014220, 3021330, 3625596, 4531995, 6042660, 9063990, 18127980]

約数ペア:

[(1, 18127980), (2, 9063990), (3, 6042660), (4, 4531995), (5, 3625596), (6, 3021330), (9, 2014220), (10, 1812798), (12, 1510665), (13, 1394460), (15, 1208532), (18, 1007110), (20, 906399), (26, 697230), (30, 604266), (36, 503555), (39, 464820), (45, 402844), (52, 348615), (60, 302133), (61, 297180), (65, 278892), (78, 232410), (90, 201422), (117, 154940), (122, 148590), (127, 142740), (130, 139446), (156, 116205), (180, 100711), (183, 99060), (195, 92964), (234, 77470), (244, 74295), (254, 71370), (260, 69723), (305, 59436), (366, 49530), (381, 47580), (390, 46482), (468, 38735), (508, 35685), (549, 33020), (585, 30988), (610, 29718), (635, 28548), (732, 24765), (762, 23790), (780, 23241), (793, 22860), (915, 19812), (1098, 16510), (1143, 15860), (1170, 15494), (1220, 14859), (1270, 14274), (1524, 11895), (1586, 11430), (1651, 10980), (1830, 9906), (1905, 9516), (2196, 8255), (2286, 7930), (2340, 7747), (2379, 7620), (2540, 7137), (2745, 6604), (3172, 5715), (3302, 5490), (3660, 4953), (3810, 4758), (3965, 4572)]