18979140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{809}}^1$

素因数の和:861

約数の個数: 96

約数和(自身を含む): 58786560

約数和(自身を除く): 39807420

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 23, 30, 34, 46, 51, 60, 68, 69, 85, 92, 102, 115, 138, 170, 204, 230, 255, 276, 340, 345, 391, 460, 510, 690, 782, 809, 1020, 1173, 1380, 1564, 1618, 1955, 2346, 2427, 3236, 3910, 4045, 4692, 4854, 5865, 7820, 8090, 9708, 11730, 12135, 13753, 16180, 18607, 23460, 24270, 27506, 37214, 41259, 48540, 55012, 55821, 68765, 74428, 82518, 93035, 111642, 137530, 165036, 186070, 206295, 223284, 275060, 279105, 316319, 372140, 412590, 558210, 632638, 825180, 948957, 1116420, 1265276, 1581595, 1897914, 3163190, 3795828, 4744785, 6326380, 9489570, 18979140]

約数ペア:

[(1, 18979140), (2, 9489570), (3, 6326380), (4, 4744785), (5, 3795828), (6, 3163190), (10, 1897914), (12, 1581595), (15, 1265276), (17, 1116420), (20, 948957), (23, 825180), (30, 632638), (34, 558210), (46, 412590), (51, 372140), (60, 316319), (68, 279105), (69, 275060), (85, 223284), (92, 206295), (102, 186070), (115, 165036), (138, 137530), (170, 111642), (204, 93035), (230, 82518), (255, 74428), (276, 68765), (340, 55821), (345, 55012), (391, 48540), (460, 41259), (510, 37214), (690, 27506), (782, 24270), (809, 23460), (1020, 18607), (1173, 16180), (1380, 13753), (1564, 12135), (1618, 11730), (1955, 9708), (2346, 8090), (2427, 7820), (3236, 5865), (3910, 4854), (4045, 4692)]