81853980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{6173}}^1$

素因数の和:6215

約数の個数: 96

約数和(自身を含む): 261382464

約数和(自身を除く): 179528484

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 17, 20, 26, 30, 34, 39, 51, 52, 60, 65, 68, 78, 85, 102, 130, 156, 170, 195, 204, 221, 255, 260, 340, 390, 442, 510, 663, 780, 884, 1020, 1105, 1326, 2210, 2652, 3315, 4420, 6173, 6630, 12346, 13260, 18519, 24692, 30865, 37038, 61730, 74076, 80249, 92595, 104941, 123460, 160498, 185190, 209882, 240747, 314823, 320996, 370380, 401245, 419764, 481494, 524705, 629646, 802490, 962988, 1049410, 1203735, 1259292, 1364233, 1574115, 1604980, 2098820, 2407470, 2728466, 3148230, 4092699, 4814940, 5456932, 6296460, 6821165, 8185398, 13642330, 16370796, 20463495, 27284660, 40926990, 81853980]

約数ペア:

[(1, 81853980), (2, 40926990), (3, 27284660), (4, 20463495), (5, 16370796), (6, 13642330), (10, 8185398), (12, 6821165), (13, 6296460), (15, 5456932), (17, 4814940), (20, 4092699), (26, 3148230), (30, 2728466), (34, 2407470), (39, 2098820), (51, 1604980), (52, 1574115), (60, 1364233), (65, 1259292), (68, 1203735), (78, 1049410), (85, 962988), (102, 802490), (130, 629646), (156, 524705), (170, 481494), (195, 419764), (204, 401245), (221, 370380), (255, 320996), (260, 314823), (340, 240747), (390, 209882), (442, 185190), (510, 160498), (663, 123460), (780, 104941), (884, 92595), (1020, 80249), (1105, 74076), (1326, 61730), (2210, 37038), (2652, 30865), (3315, 24692), (4420, 18519), (6173, 13260), (6630, 12346)]