305961320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{349}}^1$

素因数の和:499

約数の個数: 128

約数和(自身を含む): 822528000

約数和(自身を除く): 516566680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 101, 124, 140, 155, 202, 217, 248, 280, 310, 349, 404, 434, 505, 620, 698, 707, 808, 868, 1010, 1085, 1240, 1396, 1414, 1736, 1745, 2020, 2170, 2443, 2792, 2828, 3131, 3490, 3535, 4040, 4340, 4886, 5656, 6262, 6980, 7070, 8680, 9772, 10819, 12215, 12524, 13960, 14140, 15655, 19544, 21638, 21917, 24430, 25048, 28280, 31310, 35249, 43276, 43834, 48860, 54095, 62620, 70498, 75733, 86552, 87668, 97720, 108190, 109585, 125240, 140996, 151466, 175336, 176245, 216380, 219170, 246743, 281992, 302932, 352490, 378665, 432760, 438340, 493486, 605864, 704980, 757330, 876680, 986972, 1092719, 1233715, 1409960, 1514660, 1973944, 2185438, 2467430, 3029320, 4370876, 4934860, 5463595, 7649033, 8741752, 9869720, 10927190, 15298066, 21854380, 30596132, 38245165, 43708760, 61192264, 76490330, 152980660, 305961320]

約数ペア:

[(1, 305961320), (2, 152980660), (4, 76490330), (5, 61192264), (7, 43708760), (8, 38245165), (10, 30596132), (14, 21854380), (20, 15298066), (28, 10927190), (31, 9869720), (35, 8741752), (40, 7649033), (56, 5463595), (62, 4934860), (70, 4370876), (101, 3029320), (124, 2467430), (140, 2185438), (155, 1973944), (202, 1514660), (217, 1409960), (248, 1233715), (280, 1092719), (310, 986972), (349, 876680), (404, 757330), (434, 704980), (505, 605864), (620, 493486), (698, 438340), (707, 432760), (808, 378665), (868, 352490), (1010, 302932), (1085, 281992), (1240, 246743), (1396, 219170), (1414, 216380), (1736, 176245), (1745, 175336), (2020, 151466), (2170, 140996), (2443, 125240), (2792, 109585), (2828, 108190), (3131, 97720), (3490, 87668), (3535, 86552), (4040, 75733), (4340, 70498), (4886, 62620), (5656, 54095), (6262, 48860), (6980, 43834), (7070, 43276), (8680, 35249), (9772, 31310), (10819, 28280), (12215, 25048), (12524, 24430), (13960, 21917), (14140, 21638), (15655, 19544)]