20639430

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{181}}^2$

素因数の和:382

約数の個数: 72

約数和(自身を含む): 61669296

約数和(自身を除く): 41029866

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 181, 210, 315, 362, 543, 630, 905, 1086, 1267, 1629, 1810, 2534, 2715, 3258, 3801, 5430, 6335, 7602, 8145, 11403, 12670, 16290, 19005, 22806, 32761, 38010, 57015, 65522, 98283, 114030, 163805, 196566, 229327, 294849, 327610, 458654, 491415, 589698, 687981, 982830, 1146635, 1375962, 1474245, 2063943, 2293270, 2948490, 3439905, 4127886, 6879810, 10319715, 20639430]

約数ペア:

[(1, 20639430), (2, 10319715), (3, 6879810), (5, 4127886), (6, 3439905), (7, 2948490), (9, 2293270), (10, 2063943), (14, 1474245), (15, 1375962), (18, 1146635), (21, 982830), (30, 687981), (35, 589698), (42, 491415), (45, 458654), (63, 327610), (70, 294849), (90, 229327), (105, 196566), (126, 163805), (181, 114030), (210, 98283), (315, 65522), (362, 57015), (543, 38010), (630, 32761), (905, 22806), (1086, 19005), (1267, 16290), (1629, 12670), (1810, 11403), (2534, 8145), (2715, 7602), (3258, 6335), (3801, 5430)]