19379490

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1$

素因数の和:156

約数の個数: 128

約数和(自身を含む): 55157760

約数和(自身を除く): 35778270

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 17, 26, 30, 34, 37, 39, 51, 65, 74, 78, 79, 85, 102, 111, 130, 158, 170, 185, 195, 221, 222, 237, 255, 370, 390, 395, 442, 474, 481, 510, 555, 629, 663, 790, 962, 1027, 1105, 1110, 1185, 1258, 1326, 1343, 1443, 1887, 2054, 2210, 2370, 2405, 2686, 2886, 2923, 3081, 3145, 3315, 3774, 4029, 4810, 5135, 5846, 6162, 6290, 6630, 6715, 7215, 8058, 8177, 8769, 9435, 10270, 13430, 14430, 14615, 15405, 16354, 17459, 17538, 18870, 20145, 24531, 29230, 30810, 34918, 37999, 40290, 40885, 43845, 49062, 49691, 52377, 75998, 81770, 87295, 87690, 99382, 104754, 113997, 122655, 149073, 174590, 189995, 227994, 245310, 248455, 261885, 298146, 379990, 496910, 523770, 569985, 645983, 745365, 1139970, 1291966, 1490730, 1937949, 3229915, 3875898, 6459830, 9689745, 19379490]

約数ペア:

[(1, 19379490), (2, 9689745), (3, 6459830), (5, 3875898), (6, 3229915), (10, 1937949), (13, 1490730), (15, 1291966), (17, 1139970), (26, 745365), (30, 645983), (34, 569985), (37, 523770), (39, 496910), (51, 379990), (65, 298146), (74, 261885), (78, 248455), (79, 245310), (85, 227994), (102, 189995), (111, 174590), (130, 149073), (158, 122655), (170, 113997), (185, 104754), (195, 99382), (221, 87690), (222, 87295), (237, 81770), (255, 75998), (370, 52377), (390, 49691), (395, 49062), (442, 43845), (474, 40885), (481, 40290), (510, 37999), (555, 34918), (629, 30810), (663, 29230), (790, 24531), (962, 20145), (1027, 18870), (1105, 17538), (1110, 17459), (1185, 16354), (1258, 15405), (1326, 14615), (1343, 14430), (1443, 13430), (1887, 10270), (2054, 9435), (2210, 8769), (2370, 8177), (2405, 8058), (2686, 7215), (2886, 6715), (2923, 6630), (3081, 6290), (3145, 6162), (3315, 5846), (3774, 5135), (4029, 4810)]