20180488520

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^2\times {\mathrm{1745717}}^1$

素因数の和:1745762

約数の個数: 48

約数和(自身を含む): 48234188340

約数和(自身を除く): 28053699820

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 289, 340, 578, 680, 1156, 1445, 2312, 2890, 5780, 11560, 1745717, 3491434, 6982868, 8728585, 13965736, 17457170, 29677189, 34914340, 59354378, 69828680, 118708756, 148385945, 237417512, 296771890, 504512213, 593543780, 1009024426, 1187087560, 2018048852, 2522561065, 4036097704, 5045122130, 10090244260, 20180488520]

約数ペア:

[(1, 20180488520), (2, 10090244260), (4, 5045122130), (5, 4036097704), (8, 2522561065), (10, 2018048852), (17, 1187087560), (20, 1009024426), (34, 593543780), (40, 504512213), (68, 296771890), (85, 237417512), (136, 148385945), (170, 118708756), (289, 69828680), (340, 59354378), (578, 34914340), (680, 29677189), (1156, 17457170), (1445, 13965736), (2312, 8728585), (2890, 6982868), (5780, 3491434), (11560, 1745717)]