18198881948

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{45707}}^1$

素因数の和:45787

約数の個数: 72

約数和(自身を含む): 37473246720

約数和(自身を除く): 19274364772

約数列:

[1, 2, 4, 13, 19, 26, 31, 38, 52, 62, 76, 124, 169, 247, 338, 403, 494, 589, 676, 806, 988, 1178, 1612, 2356, 3211, 5239, 6422, 7657, 10478, 12844, 15314, 20956, 30628, 45707, 91414, 99541, 182828, 199082, 398164, 594191, 868433, 1188382, 1416917, 1736866, 2376764, 2833834, 3473732, 5667668, 7724483, 11289629, 15448966, 18419921, 22579258, 26921423, 30897932, 36839842, 45158516, 53842846, 73679684, 107685692, 146765177, 239458973, 293530354, 349978499, 478917946, 587060708, 699956998, 957835892, 1399913996, 4549720487, 9099440974, 18198881948]

約数ペア:

[(1, 18198881948), (2, 9099440974), (4, 4549720487), (13, 1399913996), (19, 957835892), (26, 699956998), (31, 587060708), (38, 478917946), (52, 349978499), (62, 293530354), (76, 239458973), (124, 146765177), (169, 107685692), (247, 73679684), (338, 53842846), (403, 45158516), (494, 36839842), (589, 30897932), (676, 26921423), (806, 22579258), (988, 18419921), (1178, 15448966), (1612, 11289629), (2356, 7724483), (3211, 5667668), (5239, 3473732), (6422, 2833834), (7657, 2376764), (10478, 1736866), (12844, 1416917), (15314, 1188382), (20956, 868433), (30628, 594191), (45707, 398164), (91414, 199082), (99541, 182828)]