78018440

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^3\times {\mathrm{397}}^1$

素因数の和:459

約数の個数: 64

約数和(自身を含む): 186980400

約数和(自身を除く): 108961960

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 289, 340, 397, 578, 680, 794, 1156, 1445, 1588, 1985, 2312, 2890, 3176, 3970, 4913, 5780, 6749, 7940, 9826, 11560, 13498, 15880, 19652, 24565, 26996, 33745, 39304, 49130, 53992, 67490, 98260, 114733, 134980, 196520, 229466, 269960, 458932, 573665, 917864, 1147330, 1950461, 2294660, 3900922, 4589320, 7801844, 9752305, 15603688, 19504610, 39009220, 78018440]

約数ペア:

[(1, 78018440), (2, 39009220), (4, 19504610), (5, 15603688), (8, 9752305), (10, 7801844), (17, 4589320), (20, 3900922), (34, 2294660), (40, 1950461), (68, 1147330), (85, 917864), (136, 573665), (170, 458932), (289, 269960), (340, 229466), (397, 196520), (578, 134980), (680, 114733), (794, 98260), (1156, 67490), (1445, 53992), (1588, 49130), (1985, 39304), (2312, 33745), (2890, 26996), (3176, 24565), (3970, 19652), (4913, 15880), (5780, 13498), (6749, 11560), (7940, 9826)]