645644580

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{219607}}^1$

素因数の和:219633

約数の個数: 72

約数和(自身を含む): 2102966208

約数和(自身を除く): 1457321628

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 219607, 439214, 658821, 878428, 1098035, 1317642, 1537249, 2196070, 2635284, 3074498, 3294105, 4392140, 4611747, 6148996, 6588210, 7686245, 9223494, 10760743, 13176420, 15372490, 18446988, 21521486, 23058735, 30744980, 32282229, 43042972, 46117470, 53803715, 64564458, 92234940, 107607430, 129128916, 161411145, 215214860, 322822290, 645644580]

約数ペア:

[(1, 645644580), (2, 322822290), (3, 215214860), (4, 161411145), (5, 129128916), (6, 107607430), (7, 92234940), (10, 64564458), (12, 53803715), (14, 46117470), (15, 43042972), (20, 32282229), (21, 30744980), (28, 23058735), (30, 21521486), (35, 18446988), (42, 15372490), (49, 13176420), (60, 10760743), (70, 9223494), (84, 7686245), (98, 6588210), (105, 6148996), (140, 4611747), (147, 4392140), (196, 3294105), (210, 3074498), (245, 2635284), (294, 2196070), (420, 1537249), (490, 1317642), (588, 1098035), (735, 878428), (980, 658821), (1470, 439214), (2940, 219607)]