18944120

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2143}}^1$

素因数の和:2184

約数の個数: 64

約数和(自身を含む): 48625920

約数和(自身を除く): 29681800

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 65, 68, 85, 104, 130, 136, 170, 221, 260, 340, 442, 520, 680, 884, 1105, 1768, 2143, 2210, 4286, 4420, 8572, 8840, 10715, 17144, 21430, 27859, 36431, 42860, 55718, 72862, 85720, 111436, 139295, 145724, 182155, 222872, 278590, 291448, 364310, 473603, 557180, 728620, 947206, 1114360, 1457240, 1894412, 2368015, 3788824, 4736030, 9472060, 18944120]

約数ペア:

[(1, 18944120), (2, 9472060), (4, 4736030), (5, 3788824), (8, 2368015), (10, 1894412), (13, 1457240), (17, 1114360), (20, 947206), (26, 728620), (34, 557180), (40, 473603), (52, 364310), (65, 291448), (68, 278590), (85, 222872), (104, 182155), (130, 145724), (136, 139295), (170, 111436), (221, 85720), (260, 72862), (340, 55718), (442, 42860), (520, 36431), (680, 27859), (884, 21430), (1105, 17144), (1768, 10715), (2143, 8840), (2210, 8572), (4286, 4420)]