123140680

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{7639}}^1$

素因数の和:7694

約数の個数: 64

約数和(自身を含む): 308044800

約数和(自身を除く): 184904120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 248, 260, 310, 403, 520, 620, 806, 1240, 1612, 2015, 3224, 4030, 7639, 8060, 15278, 16120, 30556, 38195, 61112, 76390, 99307, 152780, 198614, 236809, 305560, 397228, 473618, 496535, 794456, 947236, 993070, 1184045, 1894472, 1986140, 2368090, 3078517, 3972280, 4736180, 6157034, 9472360, 12314068, 15392585, 24628136, 30785170, 61570340, 123140680]

約数ペア:

[(1, 123140680), (2, 61570340), (4, 30785170), (5, 24628136), (8, 15392585), (10, 12314068), (13, 9472360), (20, 6157034), (26, 4736180), (31, 3972280), (40, 3078517), (52, 2368090), (62, 1986140), (65, 1894472), (104, 1184045), (124, 993070), (130, 947236), (155, 794456), (248, 496535), (260, 473618), (310, 397228), (403, 305560), (520, 236809), (620, 198614), (806, 152780), (1240, 99307), (1612, 76390), (2015, 61112), (3224, 38195), (4030, 30556), (7639, 16120), (8060, 15278)]