71729970

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{349}}^1$

素因数の和:420

約数の個数: 128

約数和(自身を含む): 203212800

約数和(自身を除く): 131482830

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 17, 26, 30, 31, 34, 39, 51, 62, 65, 78, 85, 93, 102, 130, 155, 170, 186, 195, 221, 255, 310, 349, 390, 403, 442, 465, 510, 527, 663, 698, 806, 930, 1047, 1054, 1105, 1209, 1326, 1581, 1745, 2015, 2094, 2210, 2418, 2635, 3162, 3315, 3490, 4030, 4537, 5235, 5270, 5933, 6045, 6630, 6851, 7905, 9074, 10470, 10819, 11866, 12090, 13611, 13702, 15810, 17799, 20553, 21638, 22685, 27222, 29665, 32457, 34255, 35598, 41106, 45370, 54095, 59330, 64914, 68055, 68510, 77129, 88995, 102765, 108190, 136110, 140647, 154258, 162285, 177990, 183923, 205530, 231387, 281294, 324570, 367846, 385645, 421941, 462774, 551769, 703235, 771290, 843882, 919615, 1103538, 1156935, 1406470, 1839230, 2109705, 2313870, 2390999, 2758845, 4219410, 4781998, 5517690, 7172997, 11954995, 14345994, 23909990, 35864985, 71729970]

約数ペア:

[(1, 71729970), (2, 35864985), (3, 23909990), (5, 14345994), (6, 11954995), (10, 7172997), (13, 5517690), (15, 4781998), (17, 4219410), (26, 2758845), (30, 2390999), (31, 2313870), (34, 2109705), (39, 1839230), (51, 1406470), (62, 1156935), (65, 1103538), (78, 919615), (85, 843882), (93, 771290), (102, 703235), (130, 551769), (155, 462774), (170, 421941), (186, 385645), (195, 367846), (221, 324570), (255, 281294), (310, 231387), (349, 205530), (390, 183923), (403, 177990), (442, 162285), (465, 154258), (510, 140647), (527, 136110), (663, 108190), (698, 102765), (806, 88995), (930, 77129), (1047, 68510), (1054, 68055), (1105, 64914), (1209, 59330), (1326, 54095), (1581, 45370), (1745, 41106), (2015, 35598), (2094, 34255), (2210, 32457), (2418, 29665), (2635, 27222), (3162, 22685), (3315, 21638), (3490, 20553), (4030, 17799), (4537, 15810), (5235, 13702), (5270, 13611), (5933, 12090), (6045, 11866), (6630, 10819), (6851, 10470), (7905, 9074)]