71487220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{149}}^2$

素因数の和:337

約数の個数: 72

約数和(自身を含む): 180238464

約数和(自身を除く): 108751244

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 149, 161, 230, 298, 322, 460, 596, 644, 745, 805, 1043, 1490, 1610, 2086, 2980, 3220, 3427, 4172, 5215, 6854, 10430, 13708, 17135, 20860, 22201, 23989, 34270, 44402, 47978, 68540, 88804, 95956, 111005, 119945, 155407, 222010, 239890, 310814, 444020, 479780, 510623, 621628, 777035, 1021246, 1554070, 2042492, 2553115, 3108140, 3574361, 5106230, 7148722, 10212460, 14297444, 17871805, 35743610, 71487220]

約数ペア:

[(1, 71487220), (2, 35743610), (4, 17871805), (5, 14297444), (7, 10212460), (10, 7148722), (14, 5106230), (20, 3574361), (23, 3108140), (28, 2553115), (35, 2042492), (46, 1554070), (70, 1021246), (92, 777035), (115, 621628), (140, 510623), (149, 479780), (161, 444020), (230, 310814), (298, 239890), (322, 222010), (460, 155407), (596, 119945), (644, 111005), (745, 95956), (805, 88804), (1043, 68540), (1490, 47978), (1610, 44402), (2086, 34270), (2980, 23989), (3220, 22201), (3427, 20860), (4172, 17135), (5215, 13708), (6854, 10430)]