18171900

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{61}}^1\times {\mathrm{331}}^1$

素因数の和:412

約数の個数: 108

約数和(自身を含む): 58067464

約数和(自身を除く): 39895564

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 61, 75, 90, 100, 122, 150, 180, 183, 225, 244, 300, 305, 331, 366, 450, 549, 610, 662, 732, 900, 915, 993, 1098, 1220, 1324, 1525, 1655, 1830, 1986, 2196, 2745, 2979, 3050, 3310, 3660, 3972, 4575, 4965, 5490, 5958, 6100, 6620, 8275, 9150, 9930, 10980, 11916, 13725, 14895, 16550, 18300, 19860, 20191, 24825, 27450, 29790, 33100, 40382, 49650, 54900, 59580, 60573, 74475, 80764, 99300, 100955, 121146, 148950, 181719, 201910, 242292, 297900, 302865, 363438, 403820, 504775, 605730, 726876, 908595, 1009550, 1211460, 1514325, 1817190, 2019100, 3028650, 3634380, 4542975, 6057300, 9085950, 18171900]

約数ペア:

[(1, 18171900), (2, 9085950), (3, 6057300), (4, 4542975), (5, 3634380), (6, 3028650), (9, 2019100), (10, 1817190), (12, 1514325), (15, 1211460), (18, 1009550), (20, 908595), (25, 726876), (30, 605730), (36, 504775), (45, 403820), (50, 363438), (60, 302865), (61, 297900), (75, 242292), (90, 201910), (100, 181719), (122, 148950), (150, 121146), (180, 100955), (183, 99300), (225, 80764), (244, 74475), (300, 60573), (305, 59580), (331, 54900), (366, 49650), (450, 40382), (549, 33100), (610, 29790), (662, 27450), (732, 24825), (900, 20191), (915, 19860), (993, 18300), (1098, 16550), (1220, 14895), (1324, 13725), (1525, 11916), (1655, 10980), (1830, 9930), (1986, 9150), (2196, 8275), (2745, 6620), (2979, 6100), (3050, 5958), (3310, 5490), (3660, 4965), (3972, 4575)]