78428140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1063}}^1$

素因数の和:1127

約数の個数: 96

約数和(自身を含む): 205922304

約数和(自身を除く): 127494164

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 31, 34, 35, 62, 68, 70, 85, 119, 124, 140, 155, 170, 217, 238, 310, 340, 434, 476, 527, 595, 620, 868, 1054, 1063, 1085, 1190, 2108, 2126, 2170, 2380, 2635, 3689, 4252, 4340, 5270, 5315, 7378, 7441, 10540, 10630, 14756, 14882, 18071, 18445, 21260, 29764, 32953, 36142, 36890, 37205, 65906, 72284, 73780, 74410, 90355, 126497, 131812, 148820, 164765, 180710, 230671, 252994, 329530, 361420, 461342, 505988, 560201, 632485, 659060, 922684, 1120402, 1153355, 1264970, 2240804, 2306710, 2529940, 2801005, 3921407, 4613420, 5602010, 7842814, 11204020, 15685628, 19607035, 39214070, 78428140]

約数ペア:

[(1, 78428140), (2, 39214070), (4, 19607035), (5, 15685628), (7, 11204020), (10, 7842814), (14, 5602010), (17, 4613420), (20, 3921407), (28, 2801005), (31, 2529940), (34, 2306710), (35, 2240804), (62, 1264970), (68, 1153355), (70, 1120402), (85, 922684), (119, 659060), (124, 632485), (140, 560201), (155, 505988), (170, 461342), (217, 361420), (238, 329530), (310, 252994), (340, 230671), (434, 180710), (476, 164765), (527, 148820), (595, 131812), (620, 126497), (868, 90355), (1054, 74410), (1063, 73780), (1085, 72284), (1190, 65906), (2108, 37205), (2126, 36890), (2170, 36142), (2380, 32953), (2635, 29764), (3689, 21260), (4252, 18445), (4340, 18071), (5270, 14882), (5315, 14756), (7378, 10630), (7441, 10540)]