721870030

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{11471}}^1$

素因数の和:11545

約数の個数: 64

約数和(自身を含む): 1585889280

約数和(自身を除く): 864019250

約数列:

[1, 2, 5, 7, 10, 14, 29, 31, 35, 58, 62, 70, 145, 155, 203, 217, 290, 310, 406, 434, 899, 1015, 1085, 1798, 2030, 2170, 4495, 6293, 8990, 11471, 12586, 22942, 31465, 57355, 62930, 80297, 114710, 160594, 332659, 355601, 401485, 665318, 711202, 802970, 1663295, 1778005, 2328613, 2489207, 3326590, 3556010, 4657226, 4978414, 10312429, 11643065, 12446035, 20624858, 23286130, 24892070, 51562145, 72187003, 103124290, 144374006, 360935015, 721870030]

約数ペア:

[(1, 721870030), (2, 360935015), (5, 144374006), (7, 103124290), (10, 72187003), (14, 51562145), (29, 24892070), (31, 23286130), (35, 20624858), (58, 12446035), (62, 11643065), (70, 10312429), (145, 4978414), (155, 4657226), (203, 3556010), (217, 3326590), (290, 2489207), (310, 2328613), (406, 1778005), (434, 1663295), (899, 802970), (1015, 711202), (1085, 665318), (1798, 401485), (2030, 355601), (2170, 332659), (4495, 160594), (6293, 114710), (8990, 80297), (11471, 62930), (12586, 57355), (22942, 31465)]