47720020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{89}}^1$

素因数の和:217

約数の個数: 96

約数和(自身を含む): 114307200

約数和(自身を除く): 66587180

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 68, 76, 83, 85, 89, 95, 166, 170, 178, 190, 323, 332, 340, 356, 380, 415, 445, 646, 830, 890, 1292, 1411, 1513, 1577, 1615, 1660, 1691, 1780, 2822, 3026, 3154, 3230, 3382, 5644, 6052, 6308, 6460, 6764, 7055, 7387, 7565, 7885, 8455, 14110, 14774, 15130, 15770, 16910, 26809, 28220, 28747, 29548, 30260, 31540, 33820, 36935, 53618, 57494, 73870, 107236, 114988, 125579, 134045, 140353, 143735, 147740, 251158, 268090, 280706, 287470, 502316, 536180, 561412, 574940, 627895, 701765, 1255790, 1403530, 2386001, 2511580, 2807060, 4772002, 9544004, 11930005, 23860010, 47720020]

約数ペア:

[(1, 47720020), (2, 23860010), (4, 11930005), (5, 9544004), (10, 4772002), (17, 2807060), (19, 2511580), (20, 2386001), (34, 1403530), (38, 1255790), (68, 701765), (76, 627895), (83, 574940), (85, 561412), (89, 536180), (95, 502316), (166, 287470), (170, 280706), (178, 268090), (190, 251158), (323, 147740), (332, 143735), (340, 140353), (356, 134045), (380, 125579), (415, 114988), (445, 107236), (646, 73870), (830, 57494), (890, 53618), (1292, 36935), (1411, 33820), (1513, 31540), (1577, 30260), (1615, 29548), (1660, 28747), (1691, 28220), (1780, 26809), (2822, 16910), (3026, 15770), (3154, 15130), (3230, 14774), (3382, 14110), (5644, 8455), (6052, 7885), (6308, 7565), (6460, 7387), (6764, 7055)]