2906408720

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{61681}}^1$

素因数の和:61744

約数の個数: 80

約数和(自身を含む): 7342625280

約数和(自身を除く): 4436216560

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 31, 38, 40, 62, 76, 80, 95, 124, 152, 155, 190, 248, 304, 310, 380, 496, 589, 620, 760, 1178, 1240, 1520, 2356, 2480, 2945, 4712, 5890, 9424, 11780, 23560, 47120, 61681, 123362, 246724, 308405, 493448, 616810, 986896, 1171939, 1233620, 1912111, 2343878, 2467240, 3824222, 4687756, 4934480, 5859695, 7648444, 9375512, 9560555, 11719390, 15296888, 18751024, 19121110, 23438780, 30593776, 36330109, 38242220, 46877560, 72660218, 76484440, 93755120, 145320436, 152968880, 181650545, 290640872, 363301090, 581281744, 726602180, 1453204360, 2906408720]

約数ペア:

[(1, 2906408720), (2, 1453204360), (4, 726602180), (5, 581281744), (8, 363301090), (10, 290640872), (16, 181650545), (19, 152968880), (20, 145320436), (31, 93755120), (38, 76484440), (40, 72660218), (62, 46877560), (76, 38242220), (80, 36330109), (95, 30593776), (124, 23438780), (152, 19121110), (155, 18751024), (190, 15296888), (248, 11719390), (304, 9560555), (310, 9375512), (380, 7648444), (496, 5859695), (589, 4934480), (620, 4687756), (760, 3824222), (1178, 2467240), (1240, 2343878), (1520, 1912111), (2356, 1233620), (2480, 1171939), (2945, 986896), (4712, 616810), (5890, 493448), (9424, 308405), (11780, 246724), (23560, 123362), (47120, 61681)]