407442020

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{3457}}^1$

素因数の和:3620

約数の個数: 48

約数和(自身を含む): 878387328

約数和(自身を除く): 470945308

約数列:

[1, 2, 4, 5, 10, 20, 71, 83, 142, 166, 284, 332, 355, 415, 710, 830, 1420, 1660, 3457, 5893, 6914, 11786, 13828, 17285, 23572, 29465, 34570, 58930, 69140, 117860, 245447, 286931, 490894, 573862, 981788, 1147724, 1227235, 1434655, 2454470, 2869310, 4908940, 5738620, 20372101, 40744202, 81488404, 101860505, 203721010, 407442020]

約数ペア:

[(1, 407442020), (2, 203721010), (4, 101860505), (5, 81488404), (10, 40744202), (20, 20372101), (71, 5738620), (83, 4908940), (142, 2869310), (166, 2454470), (284, 1434655), (332, 1227235), (355, 1147724), (415, 981788), (710, 573862), (830, 490894), (1420, 286931), (1660, 245447), (3457, 117860), (5893, 69140), (6914, 58930), (11786, 34570), (13828, 29465), (17285, 23572)]