19612900

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{139}}^1$

素因数の和:253

約数の個数: 72

約数和(自身を含む): 45934560

約数和(自身を除く): 26321660

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 83, 85, 100, 139, 166, 170, 278, 332, 340, 415, 425, 556, 695, 830, 850, 1390, 1411, 1660, 1700, 2075, 2363, 2780, 2822, 3475, 4150, 4726, 5644, 6950, 7055, 8300, 9452, 11537, 11815, 13900, 14110, 23074, 23630, 28220, 35275, 46148, 47260, 57685, 59075, 70550, 115370, 118150, 141100, 196129, 230740, 236300, 288425, 392258, 576850, 784516, 980645, 1153700, 1961290, 3922580, 4903225, 9806450, 19612900]

約数ペア:

[(1, 19612900), (2, 9806450), (4, 4903225), (5, 3922580), (10, 1961290), (17, 1153700), (20, 980645), (25, 784516), (34, 576850), (50, 392258), (68, 288425), (83, 236300), (85, 230740), (100, 196129), (139, 141100), (166, 118150), (170, 115370), (278, 70550), (332, 59075), (340, 57685), (415, 47260), (425, 46148), (556, 35275), (695, 28220), (830, 23630), (850, 23074), (1390, 14110), (1411, 13900), (1660, 11815), (1700, 11537), (2075, 9452), (2363, 8300), (2780, 7055), (2822, 6950), (3475, 5644), (4150, 4726)]