205666380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{18731}}^1$

素因数の和:18807

約数の個数: 72

約数和(自身を含む): 634115664

約数和(自身を除く): 428449284

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 61, 90, 122, 180, 183, 244, 305, 366, 549, 610, 732, 915, 1098, 1220, 1830, 2196, 2745, 3660, 5490, 10980, 18731, 37462, 56193, 74924, 93655, 112386, 168579, 187310, 224772, 280965, 337158, 374620, 561930, 674316, 842895, 1123860, 1142591, 1685790, 2285182, 3371580, 3427773, 4570364, 5712955, 6855546, 10283319, 11425910, 13711092, 17138865, 20566638, 22851820, 34277730, 41133276, 51416595, 68555460, 102833190, 205666380]

約数ペア:

[(1, 205666380), (2, 102833190), (3, 68555460), (4, 51416595), (5, 41133276), (6, 34277730), (9, 22851820), (10, 20566638), (12, 17138865), (15, 13711092), (18, 11425910), (20, 10283319), (30, 6855546), (36, 5712955), (45, 4570364), (60, 3427773), (61, 3371580), (90, 2285182), (122, 1685790), (180, 1142591), (183, 1123860), (244, 842895), (305, 674316), (366, 561930), (549, 374620), (610, 337158), (732, 280965), (915, 224772), (1098, 187310), (1220, 168579), (1830, 112386), (2196, 93655), (2745, 74924), (3660, 56193), (5490, 37462), (10980, 18731)]