209225640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1889}}^1$

素因数の和:1987

約数の個数: 128

約数和(自身を含む): 685843200

約数和(自身を除く): 476617560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 71, 78, 104, 120, 130, 142, 156, 195, 213, 260, 284, 312, 355, 390, 426, 520, 568, 710, 780, 852, 923, 1065, 1420, 1560, 1704, 1846, 1889, 2130, 2769, 2840, 3692, 3778, 4260, 4615, 5538, 5667, 7384, 7556, 8520, 9230, 9445, 11076, 11334, 13845, 15112, 18460, 18890, 22152, 22668, 24557, 27690, 28335, 36920, 37780, 45336, 49114, 55380, 56670, 73671, 75560, 98228, 110760, 113340, 122785, 134119, 147342, 196456, 226680, 245570, 268238, 294684, 368355, 402357, 491140, 536476, 589368, 670595, 736710, 804714, 982280, 1072952, 1341190, 1473420, 1609428, 1743547, 2011785, 2682380, 2946840, 3218856, 3487094, 4023570, 5230641, 5364760, 6974188, 8047140, 8717735, 10461282, 13948376, 16094280, 17435470, 20922564, 26153205, 34870940, 41845128, 52306410, 69741880, 104612820, 209225640]

約数ペア:

[(1, 209225640), (2, 104612820), (3, 69741880), (4, 52306410), (5, 41845128), (6, 34870940), (8, 26153205), (10, 20922564), (12, 17435470), (13, 16094280), (15, 13948376), (20, 10461282), (24, 8717735), (26, 8047140), (30, 6974188), (39, 5364760), (40, 5230641), (52, 4023570), (60, 3487094), (65, 3218856), (71, 2946840), (78, 2682380), (104, 2011785), (120, 1743547), (130, 1609428), (142, 1473420), (156, 1341190), (195, 1072952), (213, 982280), (260, 804714), (284, 736710), (312, 670595), (355, 589368), (390, 536476), (426, 491140), (520, 402357), (568, 368355), (710, 294684), (780, 268238), (852, 245570), (923, 226680), (1065, 196456), (1420, 147342), (1560, 134119), (1704, 122785), (1846, 113340), (1889, 110760), (2130, 98228), (2769, 75560), (2840, 73671), (3692, 56670), (3778, 55380), (4260, 49114), (4615, 45336), (5538, 37780), (5667, 36920), (7384, 28335), (7556, 27690), (8520, 24557), (9230, 22668), (9445, 22152), (11076, 18890), (11334, 18460), (13845, 15112)]