78438516

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{53}}^2\times {\mathrm{179}}^1$

素因数の和:305

約数の個数: 72

約数和(自身を含む): 202013280

約数和(自身を除く): 123574764

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 53, 78, 106, 156, 159, 179, 212, 318, 358, 537, 636, 689, 716, 1074, 1378, 2067, 2148, 2327, 2756, 2809, 4134, 4654, 5618, 6981, 8268, 8427, 9308, 9487, 11236, 13962, 16854, 18974, 27924, 28461, 33708, 36517, 37948, 56922, 73034, 109551, 113844, 123331, 146068, 219102, 246662, 369993, 438204, 493324, 502811, 739986, 1005622, 1479972, 1508433, 2011244, 3016866, 6033732, 6536543, 13073086, 19609629, 26146172, 39219258, 78438516]

約数ペア:

[(1, 78438516), (2, 39219258), (3, 26146172), (4, 19609629), (6, 13073086), (12, 6536543), (13, 6033732), (26, 3016866), (39, 2011244), (52, 1508433), (53, 1479972), (78, 1005622), (106, 739986), (156, 502811), (159, 493324), (179, 438204), (212, 369993), (318, 246662), (358, 219102), (537, 146068), (636, 123331), (689, 113844), (716, 109551), (1074, 73034), (1378, 56922), (2067, 37948), (2148, 36517), (2327, 33708), (2756, 28461), (2809, 27924), (4134, 18974), (4654, 16854), (5618, 13962), (6981, 11236), (8268, 9487), (8427, 9308)]