28306590

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{401}}^1$

素因数の和:605

約数の個数: 64

約数和(自身を含む): 73749312

約数和(自身を除く): 45442722

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 181, 195, 362, 390, 401, 543, 802, 905, 1086, 1203, 1810, 2005, 2353, 2406, 2715, 4010, 4706, 5213, 5430, 6015, 7059, 10426, 11765, 12030, 14118, 15639, 23530, 26065, 31278, 35295, 52130, 70590, 72581, 78195, 145162, 156390, 217743, 362905, 435486, 725810, 943553, 1088715, 1887106, 2177430, 2830659, 4717765, 5661318, 9435530, 14153295, 28306590]

約数ペア:

[(1, 28306590), (2, 14153295), (3, 9435530), (5, 5661318), (6, 4717765), (10, 2830659), (13, 2177430), (15, 1887106), (26, 1088715), (30, 943553), (39, 725810), (65, 435486), (78, 362905), (130, 217743), (181, 156390), (195, 145162), (362, 78195), (390, 72581), (401, 70590), (543, 52130), (802, 35295), (905, 31278), (1086, 26065), (1203, 23530), (1810, 15639), (2005, 14118), (2353, 12030), (2406, 11765), (2715, 10426), (4010, 7059), (4706, 6015), (5213, 5430)]