281386770

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{647}}^1$

素因数の和:792

約数の個数: 128

約数和(自身を含む): 821145600

約数和(自身を除く): 539758830

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 19, 21, 30, 35, 38, 42, 57, 70, 95, 105, 109, 114, 133, 190, 210, 218, 266, 285, 327, 399, 545, 570, 647, 654, 665, 763, 798, 1090, 1294, 1330, 1526, 1635, 1941, 1995, 2071, 2289, 3235, 3270, 3815, 3882, 3990, 4142, 4529, 4578, 6213, 6470, 7630, 9058, 9705, 10355, 11445, 12293, 12426, 13587, 14497, 19410, 20710, 22645, 22890, 24586, 27174, 28994, 31065, 36879, 43491, 45290, 61465, 62130, 67935, 70523, 72485, 73758, 86051, 86982, 122930, 135870, 141046, 144970, 172102, 184395, 211569, 217455, 258153, 352615, 368790, 423138, 430255, 434910, 493661, 516306, 705230, 860510, 987322, 1057845, 1290765, 1339937, 1480983, 2115690, 2468305, 2581530, 2679874, 2961966, 4019811, 4936610, 6699685, 7404915, 8039622, 9379559, 13399370, 14809830, 18759118, 20099055, 28138677, 40198110, 46897795, 56277354, 93795590, 140693385, 281386770]

約数ペア:

[(1, 281386770), (2, 140693385), (3, 93795590), (5, 56277354), (6, 46897795), (7, 40198110), (10, 28138677), (14, 20099055), (15, 18759118), (19, 14809830), (21, 13399370), (30, 9379559), (35, 8039622), (38, 7404915), (42, 6699685), (57, 4936610), (70, 4019811), (95, 2961966), (105, 2679874), (109, 2581530), (114, 2468305), (133, 2115690), (190, 1480983), (210, 1339937), (218, 1290765), (266, 1057845), (285, 987322), (327, 860510), (399, 705230), (545, 516306), (570, 493661), (647, 434910), (654, 430255), (665, 423138), (763, 368790), (798, 352615), (1090, 258153), (1294, 217455), (1330, 211569), (1526, 184395), (1635, 172102), (1941, 144970), (1995, 141046), (2071, 135870), (2289, 122930), (3235, 86982), (3270, 86051), (3815, 73758), (3882, 72485), (3990, 70523), (4142, 67935), (4529, 62130), (4578, 61465), (6213, 45290), (6470, 43491), (7630, 36879), (9058, 31065), (9705, 28994), (10355, 27174), (11445, 24586), (12293, 22890), (12426, 22645), (13587, 20710), (14497, 19410)]