18877140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1$

素因数の和:262

約数の個数: 144

約数和(自身を含む): 62899200

約数和(自身を除く): 44022060

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 31, 34, 36, 45, 51, 60, 62, 68, 85, 90, 93, 102, 124, 153, 155, 170, 180, 186, 199, 204, 255, 279, 306, 310, 340, 372, 398, 465, 510, 527, 558, 597, 612, 620, 765, 796, 930, 995, 1020, 1054, 1116, 1194, 1395, 1530, 1581, 1791, 1860, 1990, 2108, 2388, 2635, 2790, 2985, 3060, 3162, 3383, 3582, 3980, 4743, 5270, 5580, 5970, 6169, 6324, 6766, 7164, 7905, 8955, 9486, 10149, 10540, 11940, 12338, 13532, 15810, 16915, 17910, 18507, 18972, 20298, 23715, 24676, 30447, 30845, 31620, 33830, 35820, 37014, 40596, 47430, 50745, 55521, 60894, 61690, 67660, 74028, 92535, 94860, 101490, 104873, 111042, 121788, 123380, 152235, 185070, 202980, 209746, 222084, 277605, 304470, 314619, 370140, 419492, 524365, 555210, 608940, 629238, 943857, 1048730, 1110420, 1258476, 1573095, 1887714, 2097460, 3146190, 3775428, 4719285, 6292380, 9438570, 18877140]

約数ペア:

[(1, 18877140), (2, 9438570), (3, 6292380), (4, 4719285), (5, 3775428), (6, 3146190), (9, 2097460), (10, 1887714), (12, 1573095), (15, 1258476), (17, 1110420), (18, 1048730), (20, 943857), (30, 629238), (31, 608940), (34, 555210), (36, 524365), (45, 419492), (51, 370140), (60, 314619), (62, 304470), (68, 277605), (85, 222084), (90, 209746), (93, 202980), (102, 185070), (124, 152235), (153, 123380), (155, 121788), (170, 111042), (180, 104873), (186, 101490), (199, 94860), (204, 92535), (255, 74028), (279, 67660), (306, 61690), (310, 60894), (340, 55521), (372, 50745), (398, 47430), (465, 40596), (510, 37014), (527, 35820), (558, 33830), (597, 31620), (612, 30845), (620, 30447), (765, 24676), (796, 23715), (930, 20298), (995, 18972), (1020, 18507), (1054, 17910), (1116, 16915), (1194, 15810), (1395, 13532), (1530, 12338), (1581, 11940), (1791, 10540), (1860, 10149), (1990, 9486), (2108, 8955), (2388, 7905), (2635, 7164), (2790, 6766), (2985, 6324), (3060, 6169), (3162, 5970), (3383, 5580), (3582, 5270), (3980, 4743)]