78623440

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{647}}^1$

素因数の和:705

約数の個数: 120

約数和(自身を含む): 219843072

約数和(自身を除く): 141219632

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 49, 56, 62, 70, 80, 98, 112, 124, 140, 155, 196, 217, 245, 248, 280, 310, 392, 434, 490, 496, 560, 620, 647, 784, 868, 980, 1085, 1240, 1294, 1519, 1736, 1960, 2170, 2480, 2588, 3038, 3235, 3472, 3920, 4340, 4529, 5176, 6076, 6470, 7595, 8680, 9058, 10352, 12152, 12940, 15190, 17360, 18116, 20057, 22645, 24304, 25880, 30380, 31703, 36232, 40114, 45290, 51760, 60760, 63406, 72464, 80228, 90580, 100285, 121520, 126812, 140399, 158515, 160456, 181160, 200570, 253624, 280798, 317030, 320912, 362320, 401140, 507248, 561596, 634060, 701995, 802280, 982793, 1123192, 1268120, 1403990, 1604560, 1965586, 2246384, 2536240, 2807980, 3931172, 4913965, 5615960, 7862344, 9827930, 11231920, 15724688, 19655860, 39311720, 78623440]

約数ペア:

[(1, 78623440), (2, 39311720), (4, 19655860), (5, 15724688), (7, 11231920), (8, 9827930), (10, 7862344), (14, 5615960), (16, 4913965), (20, 3931172), (28, 2807980), (31, 2536240), (35, 2246384), (40, 1965586), (49, 1604560), (56, 1403990), (62, 1268120), (70, 1123192), (80, 982793), (98, 802280), (112, 701995), (124, 634060), (140, 561596), (155, 507248), (196, 401140), (217, 362320), (245, 320912), (248, 317030), (280, 280798), (310, 253624), (392, 200570), (434, 181160), (490, 160456), (496, 158515), (560, 140399), (620, 126812), (647, 121520), (784, 100285), (868, 90580), (980, 80228), (1085, 72464), (1240, 63406), (1294, 60760), (1519, 51760), (1736, 45290), (1960, 40114), (2170, 36232), (2480, 31703), (2588, 30380), (3038, 25880), (3235, 24304), (3472, 22645), (3920, 20057), (4340, 18116), (4529, 17360), (5176, 15190), (6076, 12940), (6470, 12152), (7595, 10352), (8680, 9058)]