19550440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1$

素因数の和:203

約数の個数: 128

約数和(自身を含む): 55883520

約数和(自身を除く): 36333080

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 41, 52, 56, 65, 70, 82, 91, 104, 130, 131, 140, 164, 182, 205, 260, 262, 280, 287, 328, 364, 410, 455, 520, 524, 533, 574, 655, 728, 820, 910, 917, 1048, 1066, 1148, 1310, 1435, 1640, 1703, 1820, 1834, 2132, 2296, 2620, 2665, 2870, 3406, 3640, 3668, 3731, 4264, 4585, 5240, 5330, 5371, 5740, 6812, 7336, 7462, 8515, 9170, 10660, 10742, 11480, 11921, 13624, 14924, 17030, 18340, 18655, 21320, 21484, 23842, 26855, 29848, 34060, 36680, 37310, 37597, 42968, 47684, 53710, 59605, 68120, 69823, 74620, 75194, 95368, 107420, 119210, 139646, 149240, 150388, 187985, 214840, 238420, 279292, 300776, 349115, 375970, 476840, 488761, 558584, 698230, 751940, 977522, 1396460, 1503880, 1955044, 2443805, 2792920, 3910088, 4887610, 9775220, 19550440]

約数ペア:

[(1, 19550440), (2, 9775220), (4, 4887610), (5, 3910088), (7, 2792920), (8, 2443805), (10, 1955044), (13, 1503880), (14, 1396460), (20, 977522), (26, 751940), (28, 698230), (35, 558584), (40, 488761), (41, 476840), (52, 375970), (56, 349115), (65, 300776), (70, 279292), (82, 238420), (91, 214840), (104, 187985), (130, 150388), (131, 149240), (140, 139646), (164, 119210), (182, 107420), (205, 95368), (260, 75194), (262, 74620), (280, 69823), (287, 68120), (328, 59605), (364, 53710), (410, 47684), (455, 42968), (520, 37597), (524, 37310), (533, 36680), (574, 34060), (655, 29848), (728, 26855), (820, 23842), (910, 21484), (917, 21320), (1048, 18655), (1066, 18340), (1148, 17030), (1310, 14924), (1435, 13624), (1640, 11921), (1703, 11480), (1820, 10742), (1834, 10660), (2132, 9170), (2296, 8515), (2620, 7462), (2665, 7336), (2870, 6812), (3406, 5740), (3640, 5371), (3668, 5330), (3731, 5240), (4264, 4585)]