16991940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1759}}^1$

素因数の和:1801

約数の個数: 96

約数和(自身を含む): 56770560

約数和(自身を除く): 39778620

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 23, 28, 30, 35, 42, 46, 60, 69, 70, 84, 92, 105, 115, 138, 140, 161, 210, 230, 276, 322, 345, 420, 460, 483, 644, 690, 805, 966, 1380, 1610, 1759, 1932, 2415, 3220, 3518, 4830, 5277, 7036, 8795, 9660, 10554, 12313, 17590, 21108, 24626, 26385, 35180, 36939, 40457, 49252, 52770, 61565, 73878, 80914, 105540, 121371, 123130, 147756, 161828, 184695, 202285, 242742, 246260, 283199, 369390, 404570, 485484, 566398, 606855, 738780, 809140, 849597, 1132796, 1213710, 1415995, 1699194, 2427420, 2831990, 3398388, 4247985, 5663980, 8495970, 16991940]

約数ペア:

[(1, 16991940), (2, 8495970), (3, 5663980), (4, 4247985), (5, 3398388), (6, 2831990), (7, 2427420), (10, 1699194), (12, 1415995), (14, 1213710), (15, 1132796), (20, 849597), (21, 809140), (23, 738780), (28, 606855), (30, 566398), (35, 485484), (42, 404570), (46, 369390), (60, 283199), (69, 246260), (70, 242742), (84, 202285), (92, 184695), (105, 161828), (115, 147756), (138, 123130), (140, 121371), (161, 105540), (210, 80914), (230, 73878), (276, 61565), (322, 52770), (345, 49252), (420, 40457), (460, 36939), (483, 35180), (644, 26385), (690, 24626), (805, 21108), (966, 17590), (1380, 12313), (1610, 10554), (1759, 9660), (1932, 8795), (2415, 7036), (3220, 5277), (3518, 4830)]