20175996980

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{173}}^1\times {\mathrm{253531}}^1$

素因数の和:253736

約数の個数: 48

約数和(自身を含む): 44467484544

約数和(自身を除く): 24291487564

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 173, 230, 346, 460, 692, 865, 1730, 3460, 3979, 7958, 15916, 19895, 39790, 79580, 253531, 507062, 1014124, 1267655, 2535310, 5070620, 5831213, 11662426, 23324852, 29156065, 43860863, 58312130, 87721726, 116624260, 175443452, 219304315, 438608630, 877217260, 1008799849, 2017599698, 4035199396, 5043999245, 10087998490, 20175996980]

約数ペア:

[(1, 20175996980), (2, 10087998490), (4, 5043999245), (5, 4035199396), (10, 2017599698), (20, 1008799849), (23, 877217260), (46, 438608630), (92, 219304315), (115, 175443452), (173, 116624260), (230, 87721726), (346, 58312130), (460, 43860863), (692, 29156065), (865, 23324852), (1730, 11662426), (3460, 5831213), (3979, 5070620), (7958, 2535310), (15916, 1267655), (19895, 1014124), (39790, 507062), (79580, 253531)]