20501490

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{659}}^1$

素因数の和:747

約数の個数: 64

約数和(自身を含む): 53032320

約数和(自身を除く): 32530830

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 30, 34, 51, 61, 85, 102, 122, 170, 183, 255, 305, 366, 510, 610, 659, 915, 1037, 1318, 1830, 1977, 2074, 3111, 3295, 3954, 5185, 6222, 6590, 9885, 10370, 11203, 15555, 19770, 22406, 31110, 33609, 40199, 56015, 67218, 80398, 112030, 120597, 168045, 200995, 241194, 336090, 401990, 602985, 683383, 1205970, 1366766, 2050149, 3416915, 4100298, 6833830, 10250745, 20501490]

約数ペア:

[(1, 20501490), (2, 10250745), (3, 6833830), (5, 4100298), (6, 3416915), (10, 2050149), (15, 1366766), (17, 1205970), (30, 683383), (34, 602985), (51, 401990), (61, 336090), (85, 241194), (102, 200995), (122, 168045), (170, 120597), (183, 112030), (255, 80398), (305, 67218), (366, 56015), (510, 40199), (610, 33609), (659, 31110), (915, 22406), (1037, 19770), (1318, 15555), (1830, 11203), (1977, 10370), (2074, 9885), (3111, 6590), (3295, 6222), (3954, 5185)]