78756990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{2269}}^1$

素因数の和:2381

約数の個数: 64

約数和(自身を含む): 205934400

約数和(自身を除く): 127177410

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 89, 130, 178, 195, 267, 390, 445, 534, 890, 1157, 1335, 2269, 2314, 2670, 3471, 4538, 5785, 6807, 6942, 11345, 11570, 13614, 17355, 22690, 29497, 34035, 34710, 58994, 68070, 88491, 147485, 176982, 201941, 294970, 403882, 442455, 605823, 884910, 1009705, 1211646, 2019410, 2625233, 3029115, 5250466, 6058230, 7875699, 13126165, 15751398, 26252330, 39378495, 78756990]

約数ペア:

[(1, 78756990), (2, 39378495), (3, 26252330), (5, 15751398), (6, 13126165), (10, 7875699), (13, 6058230), (15, 5250466), (26, 3029115), (30, 2625233), (39, 2019410), (65, 1211646), (78, 1009705), (89, 884910), (130, 605823), (178, 442455), (195, 403882), (267, 294970), (390, 201941), (445, 176982), (534, 147485), (890, 88491), (1157, 68070), (1335, 58994), (2269, 34710), (2314, 34035), (2670, 29497), (3471, 22690), (4538, 17355), (5785, 13614), (6807, 11570), (6942, 11345)]