989838780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{887}}^1\times {\mathrm{2657}}^1$

素因数の和:3563

約数の個数: 96

約数和(自身を含む): 3172248576

約数和(自身を除く): 2182409796

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 887, 1774, 2657, 2661, 3548, 4435, 5314, 5322, 6209, 7971, 8870, 10628, 10644, 12418, 13285, 13305, 15942, 17740, 18599, 18627, 24836, 26570, 26610, 31045, 31884, 37198, 37254, 39855, 53140, 53220, 55797, 62090, 74396, 74508, 79710, 92995, 93135, 111594, 124180, 159420, 185990, 186270, 223188, 278985, 371980, 372540, 557970, 1115940, 2356759, 4713518, 7070277, 9427036, 11783795, 14140554, 16497313, 23567590, 28281108, 32994626, 35351385, 47135180, 49491939, 65989252, 70702770, 82486565, 98983878, 141405540, 164973130, 197967756, 247459695, 329946260, 494919390, 989838780]

約数ペア:

[(1, 989838780), (2, 494919390), (3, 329946260), (4, 247459695), (5, 197967756), (6, 164973130), (7, 141405540), (10, 98983878), (12, 82486565), (14, 70702770), (15, 65989252), (20, 49491939), (21, 47135180), (28, 35351385), (30, 32994626), (35, 28281108), (42, 23567590), (60, 16497313), (70, 14140554), (84, 11783795), (105, 9427036), (140, 7070277), (210, 4713518), (420, 2356759), (887, 1115940), (1774, 557970), (2657, 372540), (2661, 371980), (3548, 278985), (4435, 223188), (5314, 186270), (5322, 185990), (6209, 159420), (7971, 124180), (8870, 111594), (10628, 93135), (10644, 92995), (12418, 79710), (13285, 74508), (13305, 74396), (15942, 62090), (17740, 55797), (18599, 53220), (18627, 53140), (24836, 39855), (26570, 37254), (26610, 37198), (31045, 31884)]